Webster's Revised Unabridged Dictionary · 1913

Techy

Techy , adjective

[From Old English tecche, tache, a habit, bad habit, vice, Old French tache, teche, a spot, stain, blemish, habit, vice, French tache a spot, blemish; probably akin to English tack a small nail. See Tack a small nail, and compare Touchy.]

Peevish; fretful; irritable.