Galileo vs Galilean

Galileo and Galilean both are nouns.

Word	Noun	Adjective	Verb	Adverb
Galileo	Yes	No	No	No
Galilean	Yes	Yes	No	No

Galileo (noun)	Galilean (noun)
Italian astronomer and mathematician who was the first to use a telescope to study the stars; demonstrated that different weights descend at the same rate; perfected the refracting telescope that enabled him to make many discoveries (1564-1642)	one of the four satellites of Jupiter that were discovered by Galileo
	an inhabitant of Galilee (an epithet of Jesus Christ)

Galileo (adjective)	Galilean (adjective)
	of or relating to Galilee or its inhabitants
	of or relating to Galileo or his works