Where does “Soutomaior” come from?

Soutomaior (Galician) comes from Galician souto, from Old Portuguese souto, from Latin saltus, from Latin saliō, from Latin sāl, from Proto-Italic sāls, from Proto-Indo-European *sḗh₂l — salt.

Ancestry of “Soutomaior”, step by step

Soutomaior traces back through two separate lines of ancestry.

via Galician souto

Step	Language	Word	Meaning
1	Galician	souto	a grove or plantation of chestnut trees
2	Old Portuguese	souto	—
3	Latin	saltus	A leap, jump; a leaping; A forest or mountain...
4	Latin	saliō	to leap, jump, bound
5	Latin	sāl	salt
6	Proto-Italic	sāls	salt
7	Proto-Indo-European	*sḗh₂l	salt

via Galician maior

Step	Language	Word	Meaning
1	Galician	maior	major, greater; major
2	Latin	māior	ancestors, forefathers; advanced in years, the aged; the elders
3	Latin	magnus	large, big; great; important
4	Proto-Indo-European	meǵh₂-	big, great; great; big, stour, great

Every word from Proto-Indo-European *sḗh₂l →Every word from Proto-Italic sāls →Every word from Latin sāl →