"excessive thirst," 1650s, from Greek polydipsios "very thirsty," from poly- "much, many" (from PIE root *pele- (1) "to fill") + dipsa "thirst" + -ia "condition of."
polyandry
polycentric
polychrome
polyclinic
polydactyl
polydipsia
Polydorus
polyester
polyethylene
polygamous
polygamy
