Gamaliel = "my recompenser is God"
1) a Pharisee and celebrated doctor of the law, who gave prudent worldly advice in the Sanhedrin respecting the treatment of the followers of Jesus of Nazareth. Act 5:34 ff. (A.D.29.) We learn from Act 22:3 that he was the preceptor of Paul. He is generally identified with the very celebrated Jewish doctor Gamaliel, grandson of Hillel, and who is referred to as authority in the Jewish Mishna.
Part of Speech: noun proper masculine
Of Hebrew origin [H1583]; Gamaliel (that is, Gamliel), an Israelite: - Gamaliel.
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 Γαμαλιήλ; click on the second column to search for that grammatical form of the root Γαμαλιήλ; click on the third column to search for that word and grammatical form; click on the total to search for the root Γαμαλιήλ.