Meaning

noun a person who enjoys fixing and experimenting with machines and their parts

noun formerly a person (traditionally a Gypsy) who traveled from place to place mending pots and kettles and other metal utensils as a way to earn a living

noun small mackerel found nearly worldwide

originFrom Middle English tynkere, perhaps from Old English *tincere, from tin (“tin”) + *cere, as in bēocere (“beekeeper”).

Etymology from Wiktionary, CC BY-SA 3.0