English word arse comes from Proto-Indo-European *ors-, and later Proto-Germanic *arsaz (Arse/ass, anus, buttocks.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *ors- | Proto-Indo-European (ine) | |
| *arsaz | Proto-Germanic (gem-pro) | Arse/ass, anus, buttocks. |
| ears | Old English (ca. 450-1100) (ang) | The arse; the buttocks or anus. |
| ers | Middle English (1100-1500) (enm) | |
| arse | English (en) | (slang, intransitive) To be silly, act stupid or mess around. (chiefly, UK, pejorative, _, slang) A stupid, mean or despicable person.. (dated, _, in, _, New England, current in, _) The buttocks or more specifically, the anus. |