Where does “ワン切り” come from?

ワン切り (Japanese) comes from Japanese ワン, from English WAN, from Middle English wan, from Old English wann, from Proto-Germanic wannaz — dark, swart.

ワン切り (Japanese): The act of calling someone and then immediately hanging up, in the hope that the recipient of the call will call back

Definitions

The act of calling someone and then immediately hanging up, in the hope that the recipient of the call will call back

ワン切り traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Japanese	ワン	Woof, bark, the sound made by a dog; One; WAN
2	English	WAN	Acronym of wide area network
3	Middle English	wan	wan; Alternative form of wane; Alternative form...
4	Old English	wann	dark; first-person singular preterite of winnan;...
5	Proto-Germanic	wannaz	dark, swart

Step	Language	Word	Meaning
1	Japanese	切り	limits, bounds, end; cutter; way of cutting
2	Japanese	切る	to cut, to slice, to carve; cut down, fell, chop...
3	Japanese	裏切り	treachery, betrayal
4	Japanese	裏	back; behind; other side; inside; reverse side of...