Where does “xerga” come from?

xerga (Galician) comes from Spanish jerga, from Latin sērica, from Ancient Greek σηρικός, from Ancient Greek -ικός, from Ancient Greek -κός, from Proto-Indo-European -ḱos — -y, -ic.

xerga (Galician): jargon; slang; a coarse blanket of wool and linen...

Definitions

jargon; slang; a coarse blanket of wool and linen...

Ancestry of “xerga”, step by step

Step	Language	Word	Meaning
1	Spanish	jerga	jargon; slang; straw pallet, coarse cotton...
2	Latin	sērica	—
3	Ancient Greek	σηρικός	seric, silken
4	Ancient Greek	-ικός	of or pertaining to, in the manner of; -ic
5	Ancient Greek	-κός	forms adjectives with the sense of 'of or...
6	Proto-Indo-European	-ḱos	-y, -ic

Every word from Proto-Indo-European -ḱos →Every word from Ancient Greek -ικός →Every word from Ancient Greek -κός →