Tiw

Etymology

Tiw is the Old English form of the Proto-West Germanic *Tīw, itself descending from Proto-Germanic Tīwaz and ultimately from the Proto-Indo-European root *deywós meaning “god.” This cognate set includes the Old Norse Tyr, Old High German Ziu, Latin deus, and Sanskrit devá, all reflecting an ancient sky-god concept. In Anglo-Saxon England, Tiw was the namesake of Tuesday (Old English Tīwesdæg), mirroring the weekday cross-cultural assignment of this god to Mars through interpretatio germanica, as in Latin Martis dies “day of Mars.”

Mythological Background

As the Anglo-Saxon counterpart to the Norse Tyr, Tiw was a god of justice, war, and legislative assemblies, likely associated with the thing (a folk-moot or parliamentary meeting). The substitution of Mars—originally a Roman god of warfare—across Germanic weekdays signposts how the peoples of early medieval England and Scandinavia aligned their pantheon with Roman deities. According to the Norse sources that survive from a later written period (most prominently the Prose Edda), Tyr agreed to place his right hand inside the maw of the wolf Fenrir as a pledge while the other gods bound the beast; when the binding held, the wolf bit off his hand, condemning Tyr to forever go one-handed. No Anglo-Saxon textual account of this same myth exists, yet the shared ancestor Tīwaz indicates that pre-Christian thegns and churls prayed to Tiw for victory in battle and fair judgments in their assembly rings.

Notable Bearers

The name appears rarely in the historical record as a personal given name, but it belies the widespread vestigial use evidenced through field names: Tyesmere, Tisbury, Tividale, a Tiw’s ‟boundary-mere” (pool) or “ valley home of Tiw’s people”. Even the absence of many completely named individuals in early charters suggests that by the time Christianity became law among the English kingdoms in the seventh century, overt invocation of the old deity had markedly receded. Tiw endured above all in toponymy, and in the grammatic preservation of the day‑name Tīwesdæg into modern English Tuesday. Literarily, after the conversion-era around 700, when the Venerable Bede computed “Monday” and “Tuesday” in his De temporum ratione, the tradition was already book-heavy enough that Bede had to acknowledge Tiu by way explaining war‑god property—cementing Tiw among historians today as a potent attestation of pre‑Christian Germanic faith in England.

• Meaning: “god” (from PIE *deywós); “war‑god,” associated with Thursday like source Ṭuesday name in mainland Germanic Ziu, cognant to namesake pius Roman days.
• Origin: Proto‑West Germanic Tīw, via Proto‑Germanic Tīwaz
• Type: God‑name used marginally as a vernacular given name in early medieval English before the conversion rendered it obscure more on non‑polytheist bearers except sparsely inherited toponym survives in field name pieces (e.g. Týsdales, etc.)
• Usage Regions: Anglo‑Saxon kingom centres about later Bede’s description has also sowed *Tyy dominant sign “the West name” throughout some England’ post‑ toponomic.