Third-person singular present simple form of deal(verb)
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Use "dealeth" in a sentence
"Quoth he, “O Queen of the Age, I have with me a merchant who dealeth in slaves.”"
"And when it is gathered, the priest by measure dealeth the branches and taketh thereof a part; and so by space of time, merchants buy that other deal."
"Go, I pray you, prepare yet, and know and see his place where his haunt is, and who hath seen him there: for it is told me that he dealeth very subtilly."