-ior

(Latin: a suffix; pertaining to)

anterior
excelsior
inferior (adjective), more inferior, most inferior
1. Someone who, or something, that is lower in value or quality: "Dina bought some inferior pearls at the garage sale."
2. A reference to someone who is lower in rank, position, or status; being subordinate.
3. Descriptive of something that is not of the best quality; mediocre; commonplace.
4. In anatomy, lower in position; situated beneath another part.
5. Referring to a a plant ovary which is enclosed by and fused with the receptacle so that it is situated below the other floral parts.
6. Astronomically, orbiting or occurring between the sun and the earth: "There are inferior planets or certain astronomical elements which are lying below the horizon."
posterior
1. Situated in back of, or in the back part of, a structure.
2. The fleshy part of the human body that that a person sits on.
3. At or near the hind end in quadrupeds or toward the spine in primates.
4. In humans and other bipeds, towards the back surface of the body; also called, the dorsal.
5. In quadrupeds, a term sometimes used as a synonym for caudal.
superior (s), superiors (pl) (nouns)
1. Someone who surpasses another person in rank or quality: "The woman's promotion in the company was approved by her superior."
2. The head of a religious community, as in an abbey or convent: "The priest was a superior in the local monastery."
3. In printing, a superior character: The number "2" in x2 is a superior symbol."