Where does “hnězdo” come from?

hnězdo (Upper Sorbian) comes from Serbo-Croatian gnezdo, from Proto-Slavic gnězdo, from Proto-Balto-Slavic *nísdan, from Proto-Indo-European nisdós, from Proto-Indo-European h₁ni, from Proto-Indo-European h₁én — in.

hnězdo (Upper Sorbian): nest

Definitions

nest

Ancestry of “hnězdo”, step by step

Step	Language	Word	Meaning
1	Serbo-Croatian	gnezdo	nest
2	Proto-Slavic	gnězdo	nest
3	Proto-Balto-Slavic	*nísdan	nest
4	Proto-Indo-European	nisdós	nest
5	Proto-Indo-European	h₁ni	down
6	Proto-Indo-European	h₁én	in

Every word from Proto-Indo-European h₁én →Every word from Proto-Indo-European h₁ni →Every word from Proto-Indo-European nisdós →