corn-

(Latin: horn, horny)

cornute
Faenum habet in cornu, longe fuge.
He has hay on his horn, beware of him.

A Latin idiom: The Romans were wary of bulls who gored haystacks. The proverb warns against the man who exhibits taurine traits.

longicorn
Having long antennae (literally, "long horned").
plumicorn
1. An ear tuft of feathers, as in the horned owls.
2. A horn-like tuft of feathers on a bird's head.
ramicorn
1. The horny sheath of the rami of the lower mandible of birds.
2. Having ramified antenna, as with insects.
tricorn
1. Having three horns or horn-like parts.
2. A hat with three points formed by turning the brim upward to the crown on three sides.
Tropic of Capricorn
1. The parallel of latitude 23° 27' south of the equator, the southern boundary of the Torrid Zone, and the most southerly latitude at which the sun can shine directly overhead (at the December solstice).
2. In astronomy, the Goat, a zodiacal constellation between Sagittarius and Aquarius.
unguicorn
A horny callosity of the epidermis, usually with a central core, formed especially on the toes or feet and caused by undue pressure or friction.
unicorn