ignigenous

== English == === Etymology === From Latin ignigenus, from ignis (“fire”) + genere, ginere (“to beget, produce”). === Adjective === ignigenous (not comparable) (archaic, geology) igneous === References === “ignigenous”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.