bua
From LSJ
ὅτι χρὴ τοῦ μέλιτος ἄκρῳ δακτύλῳ, ἀλλὰ μὴ κοίλῃ χειρὶ γεύεσθαι → that honey should be tasted with the fingertip and not by the handful
Latin > English (Lewis & Short)
bua: ae, f. bu, Paul. ex Fest. s. v. im butum, p. 109 Müll.,
I the natural sound made by infants in asking for their drink, as pappa for their food, Varr. ap. Non. p. 81, 1 sq.; cf. vinibua.
Latin > French (Gaffiot 2016)
bŭa, æ, f., mot dont se servent les enfants pour demander à boire : Varr. d. Non. p. 81, 1.