Where does “kellosignaali” come from?

kellosignaali (Finnish) comes from Finnish signaali, from Medieval Latin signale, from Latin signālis, from Latin signum, from Proto-Italic seknom, from Proto-Indo-European sek- — to cut, cut off, sever.

kellosignaali (Finnish): clock signal

Definitions

clock signal

Ancestry of “kellosignaali”, step by step

kellosignaali traces back through two separate lines of ancestry.

via Finnish signaali

Step	Language	Word	Meaning
1	Finnish	signaali	signal
2	Medieval Latin	signale	signal
3	Latin	signālis	—
4	Latin	signum	visible indication: sign, mark, signal; seal,...
5	Proto-Italic	seknom	sign
6	Proto-Indo-European	sek-	to cut, cut off, sever

via Finnish kello

Step	Language	Word	Meaning
1	Finnish	kello	clock; o'clock; time
2	Proto-Finnic	kello	—
3	Proto-Germanic	skellǭ	bell
4	Proto-Indo-European	sḱel-	to be obligated, owe
5	Proto-Indo-European	ḱelh₁-	to warm up, to be hot; to warm up, be hot

Every word from Proto-Indo-European sek- →Every word from Proto-Italic seknom →Every word from Latin signum →