1570s, alternative form of chirp (v.). Related: Chirrupy.
Entries linking to chirrup
chirp v.
"make a short, sharp, happy sound like a bird," mid-15c. (implied in chirping), echoic, or else a variant of Middle English chirken "to twitter" (late 14c.), from Old English cearcian "to creak, gnash." Related: Chirped. As a noun, attested from 1802.