资料来源 : Webster's Revised Unabridged Dictionary (1913)

Yearnings \Yearn"ings\, n. pl. [Cf. AS. geirnan, geyrnan, to
   rum. See 4th {Earn}.]
   The maws, or stomachs, of young calves, used as a rennet for
   curdling milk. [Scot.]