Kalos, beautiful; caligraphy, calotype.
Kephalē, the head; hydrocephalus.
Klino, I bend; climax, climate.
Kosmos, order; cosmogony, cosmography, cosmetic.
Krino, I judge; critic, criterion, hypocrite.
Kuklos, a circle; cycle, cycloid, cyclone.
Kuon, a dog; cynic, cynicism.
Lĕgo, I say or choose; eclectic, lexicon.
Lithos, a stone; lithograph, aerolite.
Lŏgos, a word, speech; logic, dialogue, geology.