The Collaborative International Dictionary
Babishly
Babish \Bab"ish\, a.
Like a babe; a childish; babyish. [R.] ``Babish imbecility.''
--Drayton. -- Bab"ish*ly, adv. -- Bab"ish*ness, n. [R.]
Wiktionary
babishly
adv. In a babyish manner; childishly.