| Word form | akubi |
| Original script | 欠伸 |
| LWT meaning(s) | |
| Word meaning | Noun “yawn”. |
| Grammatical info | To be used verbally, the light verb suru is needed, as in akubi o suru. |
| Analyzability | unanalyzable |
| Age | Late Old Japanese [21] (794–1185) |
| Lexical stratum | wago |
| Year | 新撰字鏡（around 900） |
| Comparison with Korean | Class 2: (J has a prefix): K haphum < MK haphïy-om, hahoy-om < *(a-)xɔxyam, (a-)xɔbxɔm, (a)xɔbxyi, (a)xɔxbx-. (320) |
| Register | General |