Emily Dickinson Lexicon

TOO, adv. [Sax. to.]

1. Over; more than enough; noting excess; as, a thing is too long, too short, or too wide; too high; too many; too much. His will too strong to bend, too proud to learn. Cowley.
2. Likewise; also; in addition. A courtier aad patriot too. Pope. Let those eyes that view / The daring crime, behold the vengeance too. Pope.
3. Too, too, repeated, denotes excess emphatically; but this repetition is not in respectable use. [The original application of to, now too, seems to have been to a word signifying a great quantity; as, speaking or giving to much – that is, to a great amount. To was thus used by old authors.]