*beestings*

{ } n. pl. [ OE. bestynge, AS. b&ymacr_;sting, fr. b&ymacr_;st, beost; akin to D. biest, OHG. biost, G. biest; of unknown origin. ] The first milk given by a cow after calving. B. Jonson. [ 1913 Webster ]

The thick and curdy milk . . . commonly called biestings. Newton. (1574). [ 1913 Webster ]