What is "annat"

Ann \Ann\, Annat \An"nat\, n. [LL. annata income of a year, also, of half a year, fr. L. annus year: cf. F. annate annats.] (Scots Law) A half years's stipend, over and above what is owing for the incumbency, due to a minister's heirs after his decease. [1913 Webster] ||

n. (alternative form of annate English)