Where does “samambaia” come from?

samambaia (Portuguese) comes from Old Tupi samambaîa, from Old Tupi paîa, from Old Tupi -a, from Old Tupi pó, from Proto-Tupi-Guarani *po, from Proto-Tupian *po — hand.

samambaia (Portuguese): fern

Definitions

fern

Ancestry of “samambaia”, step by step

Step	Language	Word	Meaning
1	Old Tupi	samambaîa	Spanish moss
2	Old Tupi	paîa	father
3	Old Tupi	-a	forms nouns from a word's stem
4	Old Tupi	pó	hand
5	Proto-Tupi-Guarani	*po	hand
6	Proto-Tupian	*po	hand

Every word from Proto-Tupian *po →Every word from Old Tupi -a →Every word from Proto-Tupi-Guarani *po →