Where does “surfriding” come from?

surfriding (English) comes from English riding, from English trithing, from Middle English trithing, from Old English þriðing, from Old Norse þriðjungr, from Proto-Germanic þridjô, from Proto-Indo-European tretyós, from Proto-Indo-European tr̥tyós — three.

surfriding (English): the sport of riding a surfboard using the power...

Definitions

  1. the sport of riding a surfboard using the power...

Ancestry of “surfriding”, step by step

surfriding traces back through two separate lines of ancestry.

via English riding

StepLanguageWordMeaning
1Englishridingpresent participle of ride; A path cut through...
2EnglishtrithingOne of three ancient divisions of a county in...
3Middle Englishtrithing
4Old Englishþriðing
5Old Norseþriðjungrthird part
6Proto-Germanicþridjôthird
7Proto-Indo-Europeantretyós
8Proto-Indo-Europeantr̥tyósthird
9Proto-Indo-Europeantréyesthree

via English surf

StepLanguageWordMeaning
1EnglishsurfWaves that break on an ocean shoreline; An...
Every word from Proto-Indo-European tréyes