Abarim Publications' online Biblical Greek Dictionary
The cardinal number τρεις (treis, meaning three — the neutral form is the more familiar τρια (tria) — occurs all over the New Testament (Matthew 12:40, Acts 9:9, Revelation 11:11). It also occurs in the following derivations and compound words:
- Postfixed with the decimal termination -konta: the cardinal number τριακοντα (triakonta), meaning thirty (Matthew 13:8, John 5:5, Galatians 3:17).
- Together with the cardinal εκατον (hekaton), meaning hundred: the cardinal τριακοσιοι (triakosioi), meaning three hundred (Mark 14:5 and John 12:5 only).
- Together with the noun βολις (bolis), meaning dart or plunger: the adjective (or noun) τριβολος (tribolos), meaning three-pronged (Matthew 7:16 and Hebrews 6:8 only). In the New Testament, this word appears to be applied only to naturally occurring three-pronged plants, but note that this term also denoted a kind of prickly military device that would ambush and cripple horses.
- Together with the noun ετος (etos), meaning year: the noun τριετια (trietia), meaning three years (Acts 20:31 only).
- Together with the noun μην (men), meaning month: the adjective τριμηνον (trimenon), meaning a three-month period (Hebrews 11:23 only).
- The adverb τρις (tris), meaning thrice or three times (Matthew 26:34, John 13:38, 2 Corinthians 11:25). From this word comes:
- Together with χιλιοι (chilioi), meaning thousand: the cardinal τρισχιλιοι (trischilioi), meaning three thousand (Acts 2:41 only).
- Together with the noun στεγη (stege), meaning roof: the adjective τριστεγον (tristegon), meaning three-roofed, which is what we would call a three-floored [building]: a building with three stories. Used as substantive, this word denotes the third level of a house (Acts 20:9).
- The ordinal number τριτος (tritos), meaning third or thirdly (Matthew 20:3, 1 Corinthians 12:28, Revelation 8:7).