出典:Wiktionary
出典:『Wiktionary』 (2025/03/11 19:35 UTC 版)
From Proto-Indo-European *leb- (“to hang loosely”), making it cognate with Proto-Germanic *lepô (“lip”), although (as with many other roots reconstructed with *b) there is some doubt about whether this root goes back to Proto-Indo-European. Lab- may be the regular outcome of zero-grade tautosyllabic *l̥b.-. Doublet of labrum.
labium n (genitive labiī or labī); second declension
Second-declension noun (neuter).
| singular | plural | |
|---|---|---|
| nominative | labium | labia |
| genitive | labiī labī |
labiōrum |
| dative | labiō | labiīs |
| accusative | labium | labia |
| ablative | labiō | labiīs |
| vocative | labium | labia |
Found in older Latin (until the Augustan Age).