or chapt, ppl. adj. (old).Parched; dry; thirsty. [From CHAP, to crack (as the lips) from want of moisture, + ED.]
1673. R. HEAD, Canting Academy, 37. CHAPD, Dry, or Thirsty.
1725. A New Canting Dictionary, s.v.
1785. GROSE, A Classical Dictionary of the Vulgar Tongue. CHAPT, dry or thirsty.
1811. GROSE and CLARKE, Lexicon Balatronicum, s.v.