FOR (2)
Source: 567
For (?), conj. 1. 1. Because; by reason that; for that; indicating, in Old English, the reason of anything.
And for of long that way had walkéd none, The vault was hid with plants and bushes hoar. Fairfax. And Heaven defend your good souls, that you think I will your serious and great business scant, For she with me. Shak. 2. 2. Since; because; introducing a reason of something before advanced, a cause, motive, explanation, justification, or the like, of an action related or a statement made. It is logically nearly equivalent to since, or because, but connects less closely, and is sometimes used as a very general introduction to something suggested by what has gone before.
Give thanks unto the Lord; for he is good; for his mercy endureth forever. Ps. cxxxvi. 1. Heaven doth with us as we with torches do, Not light them for themselves; for if our virtues Did not go forth of us, 't were all alike As if we had them not. Shak. For because, because. “Nor for because they set less store by their own citizens.” Robynson (More's Utopia). — For why. (a) Why; for that reason; wherefore. (b) Because. See Forwhy. Syn. — See Because.