Prepositional (adjective)

1. Relating to or consisting of prepositions.
2. Having the nature of a preposition.
3. Expressed or introduced by a preposition.

Origin:

Late 16th century: from latin praepositus 'placed in front', from the verb praeponere, from prae 'before' + ponere 'to place'.

Examples:

1. In English grammar, a prepositional phrase typically consists of a preposition and its object.
2. The prepositional form of the adjective is often used to express relationships between nouns.
3. The prepositional construction is used to express location, direction, time, and other relationships.
4. The prepositional phrase 'on the table' expresses the location of the book.
5. In some languages, prepositional case forms are used to mark relationships between nouns.