Definition of: yea

(yā) adverb
1. Yes: used to express affirmation or assent: in this sense now superseded by yes.
2. Not only so, but more so: to intensify or amplify a meaning: fifty, yea, a hundred: an archaic term.
3. In reality; verily: a form of introduction in a sentence.
4. So as to be realized: All the promises of God in him are yea and Amen; truly; really: a use of the Authorized Version of the Bible.
—noun An expression of affirmation; an affirmative vote; by extension, one who casts such a vote. [OE gēa]