onomasiology

noun
on·​o·​ma·​si·​ol·​o·​gy
plural -es

Definition of onomasiology

: the study of words and expressions having similar or associated concepts and a basis (as social, regional, occupational) for being grouped

History and Etymology for onomasiology

Greek onomasia name, expression (from onomazein to call, name) + English -o- + -logy

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