1) to mix together, commingle
2) to unite
2a) caused the several parts to combine into an organic structure, which is the body
2b) to unite one thing to another
Part of Speech: verb
From G4862 and G2767; to commingle, that is, (figuratively) to combine or assimilate: - mix with, temper together.
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 συγκεράννυμι; click on the second column to search for that grammatical form of the root συγκεράννυμι; click on the third column to search for that word and grammatical form; click on the total to search for the root συγκεράννυμι.