adjective, tes·ti·er, tes·ti·est.
Origin of testy
Examples from the Web for testily
"Martha has forgotten to light up the parlor," he said testily.The Precipice|Elia Wilkinson Peattie
How do you know, sir,” interrupted Sir James testily, “that this is my only motive?Post Haste|R.M. Ballantyne
"Can't wait," replied Arcot testily, his nerves on edge, too.Invaders from the Infinite|John Wood Campbell
"Folks always make one a deal worse than one is," said John Barton, testily.Mary Barton|Elizabeth Cleghorn Gaskell
"Surely a modest girl would," replied Aunt Dorothy, testily.Dorothy Vernon of Haddon Hall|Charles Major
British Dictionary definitions for testily
adjective -tier or -tiest
Word Origin for testy
Word Origin and History for testily
c.1500, "impetuous, rash," from Middle English testif "headstrong" (late 14c.), from Anglo-French testif, Old French testu "stubborn," literally "heady," from teste "head," from Late Latin testa "skull," in classical Latin "pot, shell" (see tester (n.2)). Meaning "easily irritated" is first recorded 1520s.