cognate

a. [ L. cognatus; co- + gnatus, natus, p. p. of nasci, anciently gnasci, to be born. See Nation, and cf. Connate. ] 1. Allied by blood; kindred by birth; specifically (Law), related on the mother's side. [ 1913 Webster ]

2. Of the same or a similar nature; of the same family; proceeding from the same stock or root; allied; kindred; as, a cognate language. [ 1913 Webster ]

n. 1. (Law) One who is related to another on the female side. Wharton. [ 1913 Webster ]

2. One of a number of things allied in origin or nature; as, certain letters are cognates. [ 1913 Webster ]