[croon] vb [ME croynen, fr. MD cronen; akin to OHG cronen to chatter] vi (15c) 1 chiefly Scot: bellow, boom
2: to sing or speak in a gentle murmuring manner; esp: to sing in a soft intimate manner adapted to amplifying systems ~ vt: to sing (as a popular song or a lullaby) in a crooning manner -- croon n