| Word form | obāsan |
| Original script | お祖母さん (grandmother) お婆さん (old woman) |
| LWT meaning(s) | |
| Word meaning | This is the honorific term. In the meaning „old woman“ first attested in 1694, in the present form in 1867. |
| Comments on word | in the form ōba „great mother“ attested in annotated Chinese text in 令集解 (738), in wabun in 10th century. Present form attested in 19th century. Other variants for „old woman“, baba (1694), babā (1791) |
| Analyzability | semi-analyzable |
| Gloss | o-bā-san HON-grandmother-HON |
| Age | Old Japanese [21] (710–794) |
| Lexical stratum | wago |
| Year | 令集解 (738) |
| Register | General |