出典:Wiktionary
出典:『Wiktionary』 (2026/03/25 18:01 UTC 版)
bitumen (countable and uncountable, plural bitumina or bitumens)
bitumen (third-person singular simple present bitumens, present participle bitumening, simple past and past participle bitumened)
From *bitū + -men, from Proto-Indo-European *gʷétu (“resin, gum”), borrowed from an Osco-Umbrian language, though there exists the possibility of a Celtic borrowing (compare Latin betulla, which is a Celtic borrowing from the same ultimate origin), where the shift of *gʷ > *b is regular. The raising of the first vowel might come from the Osco-Umbrian variety, or have been developed in Latin, as occasionally happens after labials; compare firmus, vitulus. Cognate with Scottish Gaelic bìth (“resin, gum”), English cud, Sanskrit जतु (jatu, “lac, gum”).
Third-declension noun (neuter, imparisyllabic non-i-stem).
| singular | plural | |
|---|---|---|
| nominative | bitūmen | bitūmina |
| genitive | bitūminis | bitūminum |
| dative | bitūminī | bitūminibus |
| accusative | bitūmen | bitūmina |
| ablative | bitūmine | bitūminibus |
| vocative | bitūmen | bitūmina |
Reflexes of an assumed variant *bittūmen:
Borrowings:
出典:Wikipedia
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