Where does “metallinkiiltävä” come from?

metallinkiiltävä (Finnish) comes from Finnish metalli, from Swedish metall, from Latin metallum, from Ancient Greek μέταλλον, from Ancient Greek μέταλλευειν — to mine, quarry.

Ancestry of “metallinkiiltävä”, step by step

metallinkiiltävä traces back through two separate lines of ancestry.

via Finnish metalli

Step	Language	Word	Meaning
1	Finnish	metalli	metal
2	Swedish	metall	metal
3	Latin	metallum	metal; precious metals, especially gold or...
4	Ancient Greek	μέταλλον	A mine, quarry, or salt pit; metal
5	Ancient Greek	μέταλλευειν	to mine, quarry

via Finnish kiiltävä

Step	Language	Word	Meaning
1	Finnish	kiiltävä	shining, gleaming, glossy, lustrous, burnished

Every word from Ancient Greek μέταλλευειν →Every word from Ancient Greek μέταλλον →Every word from Latin metallum →