Where does “Länsi-Aasia” come from?

Länsi-Aasia (Finnish) comes from Finnish Aasia, from Latin Āsia, from Ancient Greek Ἀσία, from Mycenaean Greek 𐀀𐀯𐀹𐀊, from Hittite 𒀸𒋗𒉿 — northwest Anatolia.

Ancestry of “Länsi-Aasia”, step by step

Länsi-Aasia traces back through two separate lines of ancestry.

via Finnish Aasia

Step	Language	Word	Meaning
1	Finnish	Aasia	of Asia; Asia; Asian
2	Latin	Āsia	A kind of rye
3	Ancient Greek	Ἀσία	Asia Minor; Asia; Asia
4	Mycenaean Greek	𐀀𐀯𐀹𐀊	an ethnonym for a Lydian; an epithet of the...
5	Hittite	𒀸𒋗𒉿	northwest Anatolia

via Finnish länsi

Step	Language	Word	Meaning
1	Finnish	länsi	west; the West
2	Proto-Finnic	länci	west
3	Proto-Finnic	lanci	lowland

Every word from Hittite 𒀸𒋗𒉿 →Every word from Mycenaean Greek 𐀀𐀯𐀹𐀊 →Every word from Ancient Greek Ἀσία →