| Word form | oroka |
| Original script | 愚か |
| LWT meaning(s) | |
| Analyzability | semi-analyzable |
| Gloss | oro-ka ?-AR |
| Age | Old Japanese [21] (710–794) |
| Lexical stratum | wago |
| Year | 書記 (720) |
| Comparison with Korean | Class 1: K ëli-(sëk-) < MK ëli- < *ery(o)-. (227). |
| Register | General |