"without a navel," 1742, from Latinized compound of Greek an- "without" (see an- (1)) + omphalos "navel" (see omphalos).
Entries linking to anomphalous
an- 1
privative prefix, from Greek an-, "not, without" (from PIE root *ne- "not"). The Greek prefix is a fuller form of the one represented in English by a- (3).
omphalos n.
also omphalus, "sacred stone," 1850, from Greek omphalos, literally "navel," later also "hub" (as the central point), from PIE *ombh-alo-, from root *nobh-/*ombh- "navel" (see navel). Especially as the name of the rounded or conical stone in the shrine at Delphi, regarded by the ancients as the center of the world. Related: Omphalic.