1) a covering, veil
2) metaphorically a pretext, cloak
Part of Speech: noun neuter
From G1943; a covering, that is, (figuratively) pretext: - cloke.
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 ἐπικάλυμμα; click on the second column to search for that grammatical form of the root ἐπικάλυμμα; click on the third column to search for that word and grammatical form; click on the total to search for the root ἐπικάλυμμα.