Where does “bdící” come from?

bdící (Czech) comes from Czech bdít, from Old Czech bdieti, from Old Czech -tva, from Proto-Slavic -tva, from Proto-Indo-European -tweh₂, from Proto-Indo-European -eh₂.

bdící (Czech): awake conscious

Definitions

awake conscious

Ancestry of “bdící”, step by step

Step	Language	Word	Meaning
1	Czech	bdít	to be awake, not to be asleep; to watch over
2	Old Czech	bdieti	to be awake
3	Old Czech	-tva	—
4	Proto-Slavic	-tva	Deverbative, forming nouns denoting an act,...
5	Proto-Indo-European	-tweh₂	Forms nouns from verbs
6	Proto-Indo-European	-eh₂	—

Every word from Proto-Indo-European -eh₂ →Every word from Proto-Slavic -tva →Every word from Old Czech -tva →