English Wiktionary account
Source-reportedMeaning: “Easter” + “battle”
From a southern variant of ōstra (“Easter”) + hilt (“battle”) (reanalyzed as ō-/jō-stem), Proto-West Germanic *hildi (i-stem)
Sources for this account (1)
- Wiktionary: AostarhiltCC-BY-SA-4.0 · retrieved 2026-10-15

