verb (impersonal); past me·thought. Archaic.
Examples from the Web for methinks
Methinks its owner doth protest too much—but wearing such a thing in 1968, he might have had no choice.
But then, if so, methinks I would hate her (that is, me) more than ever.A Monk of Fife|Andrew Lang
Methinks you, by your native qualities, are as well entitled to her favor as ever your progenitor could have been.The Marble Faun, Volume II.|Nathaniel Hawthorne
Now, with a few fair girls to sing a ghuzul or two to us, methinks a heaven might be made out of this wild spot.Confessions of a Thug|Philip Meadows Taylor