"earwax," 1741, medical Latin cerumen, coined by Swiss anatomist Gaspard Bauhin (1560-1624) from Latin cera "wax" (see cere (n.)) on model of albumen; or else from Greek keroumenos "formed of wax."
cerumen ce·ru·men (sə-rōō'mən)
n.
The brownish yellow, waxy secretion of the ceruminous glands of the external auditory meatus; earwax.