late 15c., "lasciviousness," from Middle French lubricité or directly from Latin lubricitatem (nominative lubricitas), from lubricus "slippery" (see lubricant (adj.)). Sense of "oiliness, smoothness" is from 1540s; figurative sense of "shiftiness" is from 1610s.[lubricity etymology, lubricity origin, 英语词源]