preposition
pre·po·si·tion
noun
a function word that combines with a noun or pronoun or noun phrase to form a prepositional phrase that can have an adverbial or adjectival relation to some other word
(linguistics) the placing of one linguistic element before another (as placing a modifier before the word it modifies in a sentence or placing an affix before the base to which it is attached)
Origin
From Middle English preposicioun, from Old French preposicion, from Latin praepositio, praepositionem, from praepono (“to place before”), equivalent to pre- + position. Compare French préposition. So called because it is placed before the word with which it is phrased, as in a bridge of iron, he comes from town, it is good for food, he escaped by running.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.