Where does “vājredzība” come from?

vājredzība (Latvian) comes from Latvian redze, from Latvian redzēt, from Latvian regt, from Proto-Balto-Slavic reg-, from Proto-Indo-European reǵ- — to bind; straight, direct; straight, right.

vājredzība (Latvian): low, poor vision, vision impairment

Definitions

low, poor vision, vision impairment

Ancestry of “vājredzība”, step by step

vājredzība traces back through two separate lines of ancestry.

via Latvian redze

Step	Language	Word	Meaning
1	Latvian	redze	vision, eyesight
2	Latvian	redzēt	to see; to see, to observe, to notice
3	Latvian	regt	—
4	Proto-Balto-Slavic	reg-	—
5	Proto-Indo-European	reǵ-	to bind; straight, direct; straight, right

via Latvian vājš

Step	Language	Word	Meaning
1	Latvian	vājš	weak; weak, poor; weak, mild, dim
2	Proto-Indo-European	wāy-	—
3	Proto-Indo-European	wē-	to winnow, thresh; to blow, to breathe

Every word from Proto-Indo-European reǵ- →Every word from Proto-Balto-Slavic reg- →Every word from Latvian regt →