Webster’s Revised Unabridged Dictionary · 1913
Seeing
See′ing, conj. (but originally a present participle). In view of the fact (that); considering; taking into account (that); insmuch as; since; because; - - followed by a dependent clause; as, he did well, seeing that he was so young.
Wherefore come ye to me, seeing ye hate me? Gen. xxvi. 27.