Croon, v. t. [imp. & p. p.Crooned (kro͞ond); p. pr. & vb. n.Crooning.] 1. To sing in a low tone, as if to one's self; to hum.
Hearing such stanzas crooned in her praise.
C. Bronté.
2. To soothe by singing softly.
The fragment of the childish hymn with which he sung and crooned himself asleep.
Dickens.