1) to light upon a person or a thing, fall in with, hit upon, a person or a thing
2) to go to or meet a person, especially for the purpose of conversation, consultation, or supplication
3) to pray, entreat
4) make intercession for any one
Part of Speech: verb
Citing in TDNT: 8:242, 1191
From G1722 and G5177; to chance upon, that is, (by implication) confer with; by extension to entreat (in favor or against): - deal with, make intercession.
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 ἐντυγχάνω; click on the second column to search for that grammatical form of the root ἐντυγχάνω; click on the third column to search for that word and grammatical form; click on the total to search for the root ἐντυγχάνω.