1) to come upon, approach
1a) of time, to come on, be at hand, next, following, on the following day
Part of Speech: participle
Feminine singular participle of a compound of G1909 and εἷμι heimi (to go); supervening, that is, (G2250 or G3571 being expressed or implied) the ensuing day or night: - following, next.
|(τῇ ἐπιούσῃ) on the next day||67.208|
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
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 ἔπειμι; click on the second column to search for that grammatical form of the root ἔπειμι; click on the third column to search for that word and grammatical form; click on the total to search for the root ἔπειμι.