Meaning

noun a device that prevents an automotive engine from starting

noun the act of interlocking or meshing

verb coordinate in such a way that all parts work together effectively

originEtymology tree Proto-Indo-European *h₁én Proto-Indo-European *h₁entér Proto-Italic *n̥ter Latin inter Latin inter-bor. English inter- Proto-Indo-European *lewg-der. Proto-Germanic *luką Proto-West Germanic *lok Old English loc Middle English lok English lock English interlock From inter- + lock.

Etymology from Wiktionary, CC BY-SA 3.0