before vowels omphal-, word-forming element meaning "navel," from Greek omphalos (see omphalos).
If you gain wisdom from staring at your belly button, it’s “omphaloskepsis.” Plus, “innie” and “outie” definedSome of us get squeamish at the sight of them. Some of us shoot studs into them. Some of us forget they are even there. No two are exactly alike — even for identical twins. The belly button is the scar on the abdomen that is caused when the umbilical cord, through which the mammalian fetus receives nourishment, is removed. Unlike other placental mammals, the …
Online Etymology Dictionary, © 2010 Douglas Harper
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.