Wiktionary
becomest
vb. (context archaic English) (en-archaic second-person singular of: become)
Usage examples of "becomest".
But when thou growest old, or ere thou diest pray not to Limpang-Tung, for thou becomest part of a scheme that he doth not understand.
Cytherea,How bravely thou becomest thy bed, fresh lily,And whiter than the sheets!