Where does “невзначай” come from?

невзначай (Russian) comes from Russian чай, from Ottoman Turkish چای, from Persian چای, from Hindi चाय, from Middle Chinese 茶, from Chinese 茶, from Proto-Loloish la¹, from Proto-Sino-Tibetan s-la — leaf; tea; flat object.

невзначай (Russian): accidentally, by chance

Definitions

accidentally, by chance

Ancestry of “невзначай”, step by step

невзначай traces back through 3 separate lines of ancestry.

via Russian чай

Step	Language	Word	Meaning
1	Russian	чай	tea; tea plant; methinks, must be, may be,...
2	Ottoman Turkish	چای	tea; rivulet
3	Persian	چای	tea
4	Hindi	चाय	tea; cup of tea
5	Middle Chinese	茶	—
6	Chinese	茶	tea
7	Proto-Loloish	la¹	tea
8	Proto-Sino-Tibetan	s-la	leaf; tea; flat object

via Russian не

Step	Language	Word	Meaning
1	Russian	не	not, no, -n't, without; Idiomatic negative usage;...
2	Proto-Slavic	ne	not
3	Proto-Balto-Slavic	nē	not
4	Proto-Indo-European	né	not; no

via Russian на́

Step	Language	Word	Meaning
1	Russian	на́	here you go! (encouraging someone to accept something, used when giving or providing something, i.e., "take it!", "here you goǃ")
2	Proto-Slavic	na	on; concerning; onto
3	Proto-Indo-European	h₂en-	on, onto

Every word from Proto-Sino-Tibetan s-la →Every word from Proto-Loloish la¹ →Every word from Chinese 茶 →