Main Entry: su·per·fe·ta·tion

Pronunciation: \-fē-ˈtā-shən\

Function: noun

Etymology: Medieval Latin superfetation-, superfetatio, from Latin superfetare to conceive while already pregnant, from super- + fetare to bear young, from fetus newly delivered — more at fetus

Date: 1642

: a progressive accumulation or accretion reaching an excessive degree