pasture vs pasturage

pasture and pasturage both are nouns.

Word	Noun	Adjective	Verb	Adverb
pasture	Yes	No	Yes	No
pasturage	Yes	No	No	No

As nouns, pasture and pasturage are synonyms defined as:

pasture and pasturage: bulky food like grass or hay for browsing or grazing horses or cattle

Other synonyms of pasture include eatage, forage, grass.

pasture (noun)	pasturage (noun)
bulky food like grass or hay for browsing or grazing horses or cattle	bulky food like grass or hay for browsing or grazing horses or cattle
a field covered with grass or herbage and suitable for grazing by livestock	succulent herbaceous vegetation of pastureland

pasture (verb)	pasturage (verb)
feed as in a meadow or pasture
let feed in a field or pasture or meadow