| Word form | roba |
| Original script | 驢馬 |
| LWT meaning(s) | |
| Analyzability | analyzable compound |
| Gloss | ro-ba donkey-horse |
| Age | Old Japanese [21] (710–794) |
| Lexical stratum | kango |
| Year | 万葉集 (after 8th century) |
| Comparison with Mandarin | different variant |
| Register | General |
| Numeric frequency | 9.5 |