Origin: 1925–30; variant of touched; perhaps representing earlier tached (Middle Englishtechyd) in the compounds (well-)tached, (evil-)tached having the (specified) quality or disposition (Middle Englishtach(e), tech(e) trait, spot, stain < Old Frenchtache spot (see tachism) + -ed3)
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.