Where does “adiantum” come from?

adiantum (Polish) comes from Latin adiantum, from Ancient Greek ἀδίαντον, from Ancient Greek ἀδίαντος, from Ancient Greek ἀ-, from Proto-Hellenic hə-, from Proto-Indo-European sm̥-, from Proto-Indo-European sem- — together, one.

adiantum (Polish): adiantum, maidenhair

Definitions

adiantum, maidenhair

Ancestry of “adiantum”, step by step

Step	Language	Word	Meaning
1	Latin	adiantum	maidenhair fern
2	Ancient Greek	ἀδίαντον	maidenhair
3	Ancient Greek	ἀδίαντος	not wet, dry
4	Ancient Greek	ἀ-	The alpha privativum, used to make words that...
5	Proto-Hellenic	hə-	same; together
6	Proto-Indo-European	sm̥-	one; with, together
7	Proto-Indo-European	sem-	together, one

Every word from Proto-Indo-European sem- →Every word from Ancient Greek ἀ- →Every word from Proto-Indo-European sm̥- →