borrowed from German Phanerogam, from the stem of New Latin Phanerogamae "group of plants with visible reproductive organs that produce seeds," from Greek phanerós "visible, conspicuous" (from phan-, base of phaínomai, phaínesthai "to become visible, come to light, appear" + -eros, adjective suffix) + New Latin -o- -o- + -gamae, noun derivative from feminine plural of -gamus -gamous — more at fantasy entry 1