1) to adopt Jewish customs and rites, imitate the Jews, Judaise
1a) one who observes the ritual law of the Jews
Part of Speech: verb
Citing in TDNT: 3:356, 372
From G2453; to become a Judaean, that is, "judaize": - live as the Jews.
|live as a Jew||41.32|
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 ἰουδαΐζω; click on the second column to search for that grammatical form of the root ἰουδαΐζω; click on the third column to search for that word and grammatical form; click on the total to search for the root ἰουδαΐζω.