Where does “ecolot” come from?

ecolot (Romanian) comes from German Echolot, from German Echo, from Latin echo, from Ancient Greek Ἠχώ, from Ancient Greek ἠχή, from Proto-Hellenic *wākʰā́.

ecolot (Romanian): echo sounder

Definitions

echo sounder

Ancestry of “ecolot”, step by step

Step	Language	Word	Meaning
1	German	Echolot	echo sounding sonar used for measuring water depth
2	German	Echo	reflected sound, echo
3	Latin	echo	echo
4	Ancient Greek	Ἠχώ	sound; a nymph in Greek mythology
5	Ancient Greek	ἠχή	sound, noise
6	Proto-Hellenic	*wākʰā́	—

Every word from Proto-Hellenic *wākʰā́ →Every word from Ancient Greek ἠχή →Every word from Ancient Greek Ἠχώ →