of
of · preposition
Definitions
preposition
- 1.
Expressing the relationship between a part and a whole.
- 2.
Indicating possession or belonging.
- 3.
Expressing origin or derivation.
- 4.
Indicating the material or substance constituting something.
- 5.
Expressing a point of reference or relevance.
- 6.
Indicating a relationship between numbers or amounts.
- 7.
Expressing the cause.
- 8.
Indicating time.
Related words
Etymology
From Old English of, meaning "away, away from," from Proto-Germanic af, from Proto-Indo-European apo meaning "off, away." The word has cognates in German ab and Dutch af. Over time, it developed its many prepositional uses expressing relationships.