ELEPHANT'INE, adjective Pertaining to the elephant; huge; resembling an elephant; or perhaps white, like ivory. 1. In antiquity, an appellation given to certain books in which the Romans registered the transactions of the senate, magistrates, emperors and generals; so called perhaps, as being made of ivory.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI