| Word form | kyōdai |
| Original script | 兄弟 |
| LWT meaning(s) | |
| Comments on word | same origin as keitei |
| Analyzability | analyzable compound |
| Gloss | kyō-dai elder_brother-younger_brother |
| Age | Old Japanese [21] (710–794) |
| Lexical stratum | kango (tō’on) |
| Year | 続日本記 (729) |
| Comparison with Mandarin | semantic change (Japanese) |
| Register | General |
| Numeric frequency | 42.0 |