Where does “lakiain” come from?

lakiain (Ingrian) comes from Ingrian laki, from Finnish laki, from Old Swedish lagh, from Old Norse lág, from Old Norse leggja, from Proto-Germanic lagjaną, from Proto-Indo-European legʰ- — to lie.

lakiain (Ingrian): hatch on top of a chimneyless bulding through which smoke comes out

Definitions

hatch on top of a chimneyless bulding through which smoke comes out

Ancestry of “lakiain”, step by step

Step	Language	Word	Meaning
1	Ingrian	laki	ceiling
2	Finnish	laki	A summit, topmost point of eg. a hill or...
3	Old Swedish	lagh	—
4	Old Norse	lág	a felled tree; log; lying tree
5	Old Norse	leggja	to lay, place, put; to make, build
6	Proto-Germanic	lagjaną	to lay, to place in a resting position
7	Proto-Indo-European	legʰ-	to lie

Every word from Proto-Indo-European legʰ- →Every word from Proto-Germanic lagjaną →Every word from Old Norse leggja →