Where does “ahtokulku” come from?

ahtokulku (Finnish) comes from Finnish ahto, from Finnish ahti, from Latin āctus, from Latin agō, from Proto-Italic agō, from Proto-Indo-European h₂éǵeti, from Proto-Indo-European h₂eǵ- — to drive.

ahtokulku (Finnish): stretto presence of two close or overlapping statements of the subject of a fugue

Definitions

stretto presence of two close or overlapping statements of the subject of a fugue

Ancestry of “ahtokulku”, step by step

ahtokulku traces back through two separate lines of ancestry.

via Finnish ahto

Step	Language	Word	Meaning
1	Finnish	ahto	cramming; stretto
2	Finnish	ahti	An act in the passion play
3	Latin	āctus	made, done, having been done
4	Latin	agō	to act, to behave
5	Proto-Italic	agō	drive; push, impel; do, act
6	Proto-Indo-European	h₂éǵeti	to be driving
7	Proto-Indo-European	h₂eǵ-	to drive

via Finnish kulku

Step	Language	Word	Meaning
1	Finnish	kulku	motion, journey; course, path; strike
2	Finnish	kulkea	To go, walk; to travel; To advance, proceed, make...
3	Proto-Finnic	kulkedak	to go; to travel
4	Proto-Uralic	kulke-	to go, to walk

Every word from Proto-Indo-European h₂eǵ- →Every word from Proto-Indo-European h₂éǵeti →Every word from Proto-Italic agō →