Where does “walkthru” come from?

walkthru (English) comes from English thru, from English through, from Middle English thrugh, from Old English þurh, from Proto-Germanic þurhw, from Proto-Indo-European tr̥h₂kʷe, from Proto-Indo-European terh₂- — to cross over, pass through, overcome.

walkthru (English): Alternative spelling of walkthrough

Definitions

  1. Alternative spelling of walkthrough

Ancestry of “walkthru”, step by step

walkthru traces back through two separate lines of ancestry.

via English thru

StepLanguageWordMeaning
1EnglishthruRare spelling of through; Eye dialect spelling of...
2EnglishthroughFrom one side of an opening to the other;...
3Middle Englishthrugh
4Old EnglishþurhAPI; through; by means of: by, through, via
5Proto-Germanicþurhwthrough
6Proto-Indo-Europeantr̥h₂kʷe
7Proto-Indo-Europeanterh₂-to cross over, pass through, overcome

via English walk

StepLanguageWordMeaning
1EnglishwalkTo move on the feet by alternately setting each...
2Middle Englishwalkto watch
3Old Englishwealcianto roll up, curl, twist; to wrinkle
4Frankishwalkōnto roll; to full
5Proto-GermanicwalkōnąTo roll about; wallow; To full
6Indo-European*wel-
Every word from Proto-Indo-European terh₂-Every word from Proto-Indo-European tr̥h₂kʷeEvery word from Proto-Germanic þurhw