- effuse (v.)
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- "to pour out, spill," late 14c., from Middle French effuser or directly from Latin effusus "poured out," past participle of effundere "to pour forth" (see effusion). Related: Effused; effusing. Not to be confused with eff youse.
- effuse (adj.)
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- 1520s, from Latin past participle adjective effusus "poured out," also "extensive, vast, broad, wide" (see effuse (v.)).