Chirrup

Chir"rup, n. The act of chirping; a chirp.

The sparrows' chirrup on the roof.
Tennyson.

Chir"rup (?), v. t. [imp. & p. p. Chirruped (?); p. pr. & vb. n. Chirruping.] [See Chirp.] To quicken or animate by chirping; to cherup.

Chir"rup, v. i. To chirp. Tennyson.

The criket chirrups on the hearth.
Goldsmith.