"fish-shaped," 1870 in biology, 1879 in mythology, from ichthyo- "fish" + -morphic, from Greek morphē "form, shape," a word of uncertain etymology.
ichnolite
ichnomancy
ichor
ichthyo-
ichthyology
ichthyomorphic
ichthyophagous
ichthyosaur
ichthyosis
icicle
icing