derivationist

noun der·i·va·tion·ist \ˌderəˈvāsh(ə)nə̇st\
variants: less commonly

derivatist

\də̇ˈrivətə̇st, dēˈ-\

Definition of derivationist

plural

-s

archaic

  1. :  evolutionist

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a rounded knoll or a ridge of ice

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