Where does “tulivartiomies” come from?

tulivartiomies (Finnish) comes from Finnish vartiomies, from Finnish vartio, from Finnish vartija, from Finnish -ja, from Proto-Finnic -ja, from Proto-Uralic -ja — Forms the present participle.

tulivartiomies (Finnish): person tasked with watching over a fire or fireplace while others are sleeping or away

Definitions

person tasked with watching over a fire or fireplace while others are sleeping or away

Ancestry of “tulivartiomies”, step by step

tulivartiomies traces back through two separate lines of ancestry.

via Finnish vartiomies

Step	Language	Word	Meaning
1	Finnish	vartiomies	guard, sentry, sentinel
2	Finnish	vartio	guard, watch; troop
3	Finnish	vartija	guard
4	Finnish	-ja	-er
5	Proto-Finnic	-ja	Forms agent nouns from verbs
6	Proto-Uralic	-ja	Forms the present participle

via Finnish tuli

Step	Language	Word	Meaning
1	Finnish	tuli	fire; campfire; Third-person singular indicative...
2	Proto-Finno-Ugric	*tuli	—
3	Proto-Uralic	tule	fire

Every word from Proto-Uralic -ja →Every word from Finnish -ja →Every word from Finnish vartija →