Techy \Tech"y\, a. [From OE. tecche, tache, a habit, bad habit, vice, OF. tache, teche, a spot, stain, blemish, habit, vice, F. tache a spot, blemish; probably akin to E. tack a small nail. See Tack a small nail, and cf. Touchy.]

Peevish; fretful; irritable.

Source: Webster's Revised Unabridged Dictionary (1913)