omphalo-, omphal-

(Greek: navel, umbilicus; pertaining to the navel or to the umbilicus)

cirsomphalous
exomphalos
omphalectomy
omphalelcosis
omphalic
omphalitis
omphaloangiopagus
Conjoined twins united by the vessels of the umbilical cord (ompha, "navel" + angeion, "vessel", + pagos, "thing fixed").
omphalocele
omphalochorion
omphalodidymus
omphalogenesis
omphaloid
omphaloma
omphalomancy
Divination by contemplation of one’s own navel (as in yoga?) or by counting the knots in the umbilical cord of a mother’s first child to predict the number of children she will have.
omphalomantist