Pseudo

google

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late Middle English (as a noun in the sense ‘false apostle or teacher’): independent use of pseudo-.

wiktionary

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From Middle English, derived from prefix pseudo-, itself derived from Ancient Greek ψευδής(pseudḗs, “false, lying”)

etymonline

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pseudo (n.)

late 14c., "false or spurious thing," especially "person falsely claiming divine authority," from Medieval Latin; see pseudo-. In modern use, of things, "imitated and exaggerated;" of persons, "pretentious, insincere," from 1945; as a noun in the modern sense from 1959. Related: Pseudish.