different between lesbianish vs lesbianist

English

lesbian +? -ish

lesbianish (comparative more lesbianish, superlative most lesbianish)

lesbian +? -ist

lesbianist (plural lesbianists)

(rare, sometimes derogatory) Alternative form of lesbian
- 1966, North Western Reporter
  She was an admitted felon, a three-time loser to the law, a liar, a prostitute, a sodomist, and a lesbianist.
- 2014, Krishan Vij, Textbook of Forensic Medicine & Toxicology
  NYMPHOMANIA: Excessive sexual desire, urge or drive in a woman. Some of such women may turn lesbianists.

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