Where does “glotologia” come from?

glotologia (Polish) comes from Polish glotto-, from Ancient Greek γλῶττα, from Ancient Greek γλῶσσα, from Old Norse glotta, from Proto-Germanic glutōną, from Proto-Indo-European ǵʰel- — to shine, glimmer, glow; to shimmer, gleam;...

Ancestry of “glotologia”, step by step

Step	Language	Word	Meaning
1	Polish	glotto-	glott
2	Ancient Greek	γλῶττα	Attic form of γλῶσσα
3	Ancient Greek	γλῶσσα	a tongue; a language; the mouthpiece of a pipe
4	Old Norse	glotta	to grin, smile scornfully
5	Proto-Germanic	glutōną	To stare; gawk
6	Proto-Indo-European	ǵʰel-	to shine, glimmer, glow; to shimmer, gleam;...

Every word from Proto-Indo-European ǵʰel- →Every word from Proto-Germanic glutōną →Every word from Old Norse glotta →