Meaning

noun a small worthless amount

noun a man who serves as a sailor

noun someone who works with their hands; someone engaged in manual labor

originEtymology tree Middle English Jackin Middle English Jankyn English Jack From Middle English Jackin, Jankyn, a popular pet form of John; rarely also an anglicized form of French Jacques (equivalent of Jacob and James). It can be also used as nickname for Jacob. Though the name was originally a pet form, it has become more of an independent name. Equivalent to John + -kin, Jake or Jacques. See also…

Etymology from Wiktionary, CC BY-SA 3.0