cathode
Word family adjectivecathodalcathodicnouncathodographcathodographercathodographycathodoluminescencecathode
cath·ode /ˈkæθəʊd $ -θoʊd/ noun [countableC] Origin cathode (1800-1900) Greek kathodos “way down”, from
kata- (
→ CATACLYSM) +
hodos “way”