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Origin Adapted from Phoenician consonantal script, about the 8th century BCE
Beta is the second letter of the Greek alphabet, from the Phoenician beth, meaning house, and unchanged in order from its Semitic source. It sounds the b of classical Greek, which in modern Greek has become a v, and its value in isopsephy is two. The word alphabet itself is formed from the names of the first two letters, Alpha and Beta. As the number two and the second letter, Beta marks the second in any series: the beta particle and the beta ray, the beta version of software that follows the alpha, the second-ranking beta of a group. In finance beta measures a stock's volatility relative to the market.
Facts
Origins
Origin PeriodAdapted from Phoenician consonantal script, about the 8th century BCE 1Tradition: The Greek alphabet and the Milesian numerals Origin PeriodEvery European alphabet descends from that decision 1Tradition: The Greek alphabet and the Milesian numerals Origin PeriodInnovation: wrote vowels with letters of their own 1Tradition: The Greek alphabet and the Milesian numerals Place of OriginPrecise place disputed: Al Mina, Cyprus, Crete, Euboea all argued for 1Tradition: The Greek alphabet and the Milesian numerals Place of OriginThe Aegean world, at a point of contact with Phoenician traders 1Tradition: The Greek alphabet and the Milesian numerals Origin of the NameAlpha, beta, gamma are aleph, bet, gimel: ox, house, camel 1Tradition: The Greek alphabet and the Milesian numerals Origin of the NameClearest evidence the alphabet was taken over, not invented 1Tradition: The Greek alphabet and the Milesian numerals Origin of the NameGreek letter names are borrowed Semitic words meaning nothing in Greek 1Tradition: The Greek alphabet and the Milesian numerals Sense of the Namehouse (from Phoenician beth) 1Tradition: The Greek alphabet and the Milesian numerals The pictographic sense is a modern reconstruction from the letter name rather than a meaning attested in the script's own period, and the atlas records that position elsewhere on this letter. The name itself is inherited; the picture behind it is inferred. Attestation
Meaning in the Attesting SourceIsopsephy (Greek gematria) attested in inscriptions and magical papyri 1Tradition: The Greek alphabet and the Milesian numerals Meaning in the Attesting SourceThe 27-sign series used three lost letters: digamma/stigma, koppa, sampi 1Tradition: The Greek alphabet and the Milesian numerals Meaning in the Attesting SourceThis atlas's 24 letters hold none of those three 1Tradition: The Greek alphabet and the Milesian numerals Identity
Script TypeAn alphabet: each letter writes a single sound, consonant or vowel, inherited from Phoenician's twenty-two consonantal signs but repurposing several of them, for the first time in the alphabet's history, to write vowels outright. 1 PositionSecond of twenty-four in the Greek alphabet 1 Attributions
Associated SoundVoiced bilabial stop b in classical Greek, become a voiced labiodental fricative v in modern Greek 1 Learn More
Beta: The Greek Letter (Value 2), From House
Beta is the second Greek letter, from Phoenician beth ('house'); its value is 2. Beyond its ordinal sense of 'second' (as in the modern 'alpha and beta'), Beta carries no significant independent mystical tradition; its interest is chiefly linguistic and, through isopsephy, numerical. The Greek letters doubled as numerals in the Milesian (alphabetic) system, in which each letter carried a fixed value; the practice of summing a word's letters into a number, called isopsephy, is the Greek counterpart of Hebrew gematria and appears in inscriptions, the Greek Magical Papyri and early Christian texts. Beta's Phoenician ancestry places it in a borrowing whose exact point of contact, somewhere among Al Mina, Cyprus, Crete and Euboea in the Aegean world, is still disputed, though the borrowing itself, conventionally dated to around the 8th century BCE, is agreed to be the ancestor of every European alphabet still in use, including the Latin one covered elsewhere in this atlas.
The Greeks' own contribution was to give vowels dedicated letters of their own, something the consonant-only Phoenician script never did. Its isopsephy value of 2 belongs to the Milesian alphabetic numeral system, which also needed three further, otherwise obsolete letters, digamma (also called stigma), koppa and sampi, to cover every value from 1 up to 900; none of the three survives among the 24 letters in ordinary use today.
Beta in Modern Use
As covered elsewhere in this atlas, Greek settled into the alphabet used today only in 403 BCE, when Athens formally adopted the Ionic script; the cursive, rounded lowercase letters, beta included, came later still, standardised during the Byzantine minuscule reform of roughly the 9th century CE. Beta's modern technical senses are recent by comparison.
Ernest Rutherford named the electron emitted in radioactive decay a beta particle in 1899, the second stage in his alpha, beta, gamma classification of radiation by penetrating power; astronomers, following the Bayer star-naming convention of 1603, typically call the second-brightest star in a constellation Beta; and software makers, extending the same alpha-first sequence, call a more finished but still unreleased test version a beta, the stage of public or semi-public testing that follows internal alpha testing. Statisticians also use lowercase beta for a regression coefficient and for the probability of a false negative in hypothesis testing. None of these senses is older than the 17th century at the earliest, and the 19th and 20th century ones share nothing with beta's ancient Semitic or Kabbalistic background beyond the borrowed name.
Cross-Tradition Connections
Derived from This
The Latin letter B descends from Greek Beta, reaching Latin through the Etruscan adaptation of a Western Greek alphabet. A straightforward continuation of shape, order and sound value.
Taken over with the softened Roman period pronunciation, not the classical one
Why this is disputed. Glagolitic Vede is read as Greek Beta's counterpart in an alphabet Cyril modeled on Greek order and numeral values, but which theory explains where its rounded letterform actually came from is a live paleographic dispute. The mainstream palaeographic school, developed since Isaac Taylor's nineteenth century study, derives Glagolitic's ornamental shapes from medieval Greek cursive minuscule redesigned for Slavonic use. A rival idiographic school reads Glagolitic as substantially an original invention, its shapes built from basic forms such as the cross, circle and triangle rather than borrowed from any existing script, so this specific correspondence to Beta is accepted by one camp and denied by the other.
Vedi takes its shape from Greek beta and its numeral value of 2 from the same letter. It writes v rather than b because Byzantine Greek had already shifted beta to v.
Related To
Roman B and Greek Beta continue the same Phoenician beth.
Coptic Beta is the Greek beta under its Greek form and name, though Coptic inherited the later Roman-period Greek pronunciation rather than the classical one; both carry the numeral value 2.
Greek Beta and Hebrew Beth are cognates. Both continue the same Phoenician sign, which is why both carry the numeral value 2 in their letter-number systems. A shared ancestor, not a borrowing in either direction. The Greek alphabet was adapted from the Phoenician abjad in the early first millennium BC, and the Hebrew square script descends from the same abjad through Aramaic.
Hebrew Beth and Greek Beta continue the same Phoenician beth; both carry the numeral value 2 in their letter-number systems.
Samaritan Bit and Greek Beta both continue the same Phoenician sign, in the same second position, and both write b. The Greek letter name is the Semitic one carried over with the sign.
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