tacitEnglishOxford Dictionary of Englishtacit /ˈtasɪt / ▸ adjective understood or implied without being stated: your silence may be taken to mean tacit agreement. – ORIGIN early 17th century (in the sense ‘wordless, noiseless’): from Latin tacitus, past participle of tacere ‘be silent’.
/ 
EnglishOxford Dictionary of English
