What is "legitim"

Legitim \Le*git"im\ (l[-e]*j[i^]"[i^]m), n. [See Legitimate, a.] (Scots Law) The portion of movable estate to which the children are entitled upon the death of the father.

n. (context legal English) Common in Continental Law jurisdictions, a portion of property fixed by law, which a testator with issue is bound to bequeath to his children.