masc. proper name, biblical patriarch, from Hebrew Noach, literally "rest." Phrase Noah's ark in reference to the ark in which, according to Genesis, Noah saved his family and many animals, is attested from 1610s. As a child's toy representing Noah's ark, by 1841.
The adjective Noachian, in reference to the flood legend, is from 1670s, reflecting the Hebrew pronunciation. Noachical is from 1660s; Noachic from 1773.
updated on July 07, 2019