Where does “נבך” come from?

נבך (Hebrew) comes from Yiddish נעבעך, from Czech nebohý, from Proto-Slavic nebogъ, from Proto-Slavic ne, from Proto-Balto-Slavic nē, from Proto-Indo-European né — not; no.

נבך (Hebrew): unfortunate person; unhappy person; poor person

Definitions

unfortunate person; unhappy person; poor person

Ancestry of “נבך”, step by step

Step	Language	Word	Meaning
1	Yiddish	נעבעך	sadly, unfortunately; unfortunate person; unhappy...
2	Czech	nebohý	poor
3	Proto-Slavic	nebogъ	poor; unfortunate
4	Proto-Slavic	ne	not
5	Proto-Balto-Slavic	nē	not
6	Proto-Indo-European	né	not; no

Every word from Proto-Indo-European né →Every word from Proto-Balto-Slavic nē →Every word from Proto-Slavic ne →