[1820–30; ichthyo- + -lite]This word is first recorded in the period 1820–30. Other words that entered Englishat around the same time include: analogue, blouse, boomerang, karma, morphologyichthyo- is a combining form meaning “fish,” used in the formation of compound words. Otherwords that use the affix ichthyo- include: ichthyofauna, ichthyology, ichthyophagy, ichthyophthirius, ichthyosarcotoxin; -lite is a combining form used in the names of minerals or fossils. Other words that usethe affix -lite include: cryolite, lepidolite, melilite, pharmacolite, scapolite