From BiblePortal Wikipedia

Vine's Expository Dictionary of NT Words [1]

1: Ἡττάομαι (Strong'S #2274 — Verb — hettaomai | hessaomai — hayt-tah'-o )

"to be less or inferior," is used in the Passive Voice, and translated "ye were made inferior," in  2—Corinthians 12:13 , RV for AV, "ye were inferior," i.e., were treated with less consideration than other churches, through his independence in not receiving gifts from them. In  2—Peter 2:19,20 it signifies to be overcome, in the sense of being subdued and enslaved. See Overcome. Cp. hesson, "less,"   2—Corinthians 12:15; in  1—Corinthians 11:17 , "worse;" hettema, "a loss, a spiritual defect,"  Romans 11:12;  1—Corinthians 6:7 . Also elattoo, "to decrease, make lower,"  John 3:30;  Hebrews 2:7,9 .

Webster's Dictionary [2]

(1): ( a.) Situated below some other organ; - said of a calyx when free from the ovary, and therefore below it, or of an ovary with an adherent and therefore inferior calyx.

(2): ( a.) Junior or subordinate in rank; as, an inferior officer.

(3): ( a.) Nearer the sun than the earth is; as, the inferior or interior planets; an inferior conjunction of Mercury or Venus.

(4): ( n.) A person lower in station, rank, intellect, etc., than another.

(5): ( a.) On the side of a flower which is next the bract; anterior.

(6): ( a.) Lower in place, rank, excellence, etc.; less important or valuable; subordinate; underneath; beneath.

(7): ( a.) Poor or mediocre; as, an inferior quality of goods.

(8): ( a.) Below the horizon; as, the inferior part of a meridian.

King James Dictionary [3]

INFE'RIOR, a. L. comp. from inferus, low.

1. Lower in place. 2. Lower in station, age, or rank in life. Pay due respect to those who are superior in station, and due civility to those who are inferior. 3. Lower in excellence or value as a poem of inferior merit cloth of inferior quality or price. 4. Subordinate of less importance. Attend to health and safety ease and convenience are inferior considerations.

INFE'RIOR, n. A person who is younger, or of a lower station or rank in society.

A person gets more by obliging his inferior, than by disdaining him.