yea

Yes, indeed.

1597–1598, Joseph Hall, Virgidemiarum Yea, and the prophet of the heav'nly lyre, / Great Solomon sings in the English quire […]

Let no man say that the Devil is not a cruel tyrant. He may give his folk some scrapings of unhallowed pleasure, but he will exact tithes, yea, of anise and cummin, in return, and there is aye the reckoning to pay at the hinder end.

Thus, so (now often accompanied by a hand gesture by way of measurement).

This kid... What'd he look like? / Well, he was about yea high. You know, tiny like. I didn't get a good look at him, though. He was back in the kitchen.

Or even, or more like, nay. Introduces a stronger and more appropriate expression than the preceding one.

[N]ow ſuch a liue vngodly, vvithout a care of doing the wil of the Lord (though they profeſſe him in their mouths, yea though they beleeue and acknowledge all the Articles of the Creed, yea haue knowledge of the Scripturs) yet if they liue vngodly, they deny God, and therefore ſhal be denied, […] (with modern spelling) [N]ow such a life ungodly, without a care of doing the will of the Lord (though they profess him in their mouths, yea though they believe and acknowledge all the Articles of the Creed, yea have knowledge of the Scriptures) yet if they live ungodly, they deny God, and therefore shall be denied

O stay, three lives in one flea spare, Where we almost, yea, more than married are.

Yeah, right, yes.