Thorn in the Old English Rune Poem

Thorn's stanza is among the shortest and most direct in the whole Old English Rune Poem, reading the thorn as exceedingly sharp, an evil thing for any warrior to take hold of, and uncommonly harsh toward any man who lies down among a bed of thorns, a plain, physical warning with none of the extended moral or cosmological reflection several other stanzas carry. This directness sits somewhat apart from the rune's Elder Futhark cognate Thurisaz, whose name means giant or troll rather than the plant at all, a shift the Anglo-Saxon tradition made from a supernatural danger, a hostile being, to an entirely mundane one, a sharp plant that hurts whoever handles it carelessly, while keeping the underlying sense of hazard and pain intact across the change.

Halsall's critical edition treats this kind of semantic drift, a rune's name shifting from one dangerous referent to another while its core reading of threat or harm survives the change, as one of the clearer patterns runologists can trace across the gap between the Elder Futhark and the later futhorc tradition. The stanza's brevity has itself drawn scholarly comment, some readings taking it as evidence the compiler had comparatively little inherited lore to draw on for this particular rune compared to the richer stanzas surrounding it.