Emily Dickinson Lexicon

reason (-s), n. [OFr < L. ratiōn-em, reckoning, account, relation, understanding, motive, cause < rēri, think, reckon.] (webplay: ask, being, charity, God, known, men, mind, sense, soul, speak, talk, thought, world).

1. Logic; rational thinking; mental construct.
2. Answer; motive; grounds; determining factor; cause of action.