出典:Wiktionary
出典:『Wiktionary』 (2025/08/07 19:01 UTC 版)
Likely a back-formation from vacuus, originally formed as vacō (“to be empty”) + -uus (perfect active participle suffix), later reanalysed as an adjective.
vacuō (present infinitive vacuāre, perfect active vacuāvī, supine vacuātum); first conjugation (transitive)