hek'aton, a hundred—hecatomb.
he'lios, the sun—heliotrope, aphelion, perihelion.
he'mera, a day—ephemeral.
hep'ta, seven—heptagon, heptarchy.
he'ros, a hero—hero, heroic, heroine, heroism.
het'eros, another, unlike—heterodox, heterodoxy, heterogeneous.
hex, six—hexagon, hexangular.
hi'eros, sacred—hierarchy, hieroglyphics (glyphein, to carve).
hip'pos, a horse—hippodrome, hippopotamus, Philip, philippic.
hol'os, all—holocaust, holograph, catholic, catholicity.