1) a pouring or sprinkling upon, affusion
Part of Speech: noun feminine
From a compound of G4314 and χέω cheô (to pour); a shedding forth, that is, affusion: - sprinkling.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root πρόσχυσις; click on the second column to search for that grammatical form of the root πρόσχυσις; click on the third column to search for that word and grammatical form; click on the total to search for the root πρόσχυσις.