Where does “halogenium” come from?

halogenium (New Latin) comes from Swedish halogen, from Ancient Greek ἅλς, from Ancient Greek -ῐος, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “halogenium”, step by step

Step	Language	Word	Meaning
1	Swedish	halogen	—
2	Ancient Greek	ἅλς	salt; brine; sea
3	Ancient Greek	-ῐος	belonging to; of”, “belonging to”, “pertaining to
4	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

Words derived from “halogenium”

halogeen

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐος →Every word from Ancient Greek ἅλς →