coax · verb, noun1
Originally (1586) in the slang phrase to make a coax of, from earlier noun coax, cox, cokes "fool, simpleton", itself of obscure origin, perhaps related to cock (“male bird, pert boy”). The modern spelling is from 1706.
coax · noun, adjective2
Shortened from coaxial
Etymology from Wiktionary, CC BY-SA 4.0.