Where does “wave washing” come from?

wave washing (English) comes from English wave, from Middle English wawe, from Old English wǣġ, from Proto-Germanic wēgaz, from Proto-Indo-European weǵʰ- — to bring; to transport.

wave washing (English): A form of hunting used by some pods of orcas to drive a prey animal (such as a seal) seeking refuge on a sheet of ice into the water, in which members of the pod swim together at high speed towards the sheet to create a powerful wave that breaks it up

Definitions

  1. A form of hunting used by some pods of orcas to drive a prey animal (such as a seal) seeking refuge on a sheet of ice into the water, in which members of the pod swim together at high speed towards the sheet to create a powerful wave that breaks it up

Ancestry of “wave washing”, step by step

wave washing traces back through two separate lines of ancestry.

via English wave

StepLanguageWordMeaning
1EnglishwaveTo move back and forth repeatedly and somewhat...
2Middle EnglishwaweA wave; Any sort of flowing or spurting motion;...
3Old Englishwǣġa weight; a tool for weighing, balance, scale
4Proto-Germanicwēgazwave; sea
5Proto-Indo-Europeanweǵʰ-to bring; to transport

via English washing

StepLanguageWordMeaning
1EnglishwashingThe action of the verb to wash; Clothing,...
2Middle EnglishwasshyngeThe process of washing or cleaning
3Old English*wæsċingwashing
Every word from Proto-Indo-European weǵʰ-