Webster's Dictionary 
(1): (imp. & p. p.) of Ally
(2): (a.) United; joined; leagued; akin; related. See Ally.
King James Dictionary 
ALLI'ED, pp. Connected by marriage, treaty or similitude. See ally.
International Standard Bible Encyclopedia 
a - lı̄d ´ (קרב , ḳārōbh , "near," as in Genesis 45:10; Exodus 13:17 , etc.): Nehemiah 13:4 refers either to family ties, as in Rth 2:20, or to intimate association.