Where does “triplefold” come from?

triplefold (English) comes from English fold, from Middle English fold, from Old English fald, from Proto-Germanic faludaz — an enclosed space, enclosure.

Ancestry of “triplefold”, step by step

triplefold traces back through two separate lines of ancestry.

via English fold

StepLanguageWordMeaning
1EnglishfoldTo bend over so that it comes in contact with...
2Middle EnglishfoldA pen, enclosure, or shelter for domesticated animals
3Old Englishfald
4Proto-Germanicfaludazan enclosed space, enclosure

via English triple

StepLanguageWordMeaning
1EnglishtripleMade up of three related elements, often...
2Middle Englishtriple
3Latintriplusthreefold, triple
4Proto-Italic*triplosthreefold, triple
Every word from Proto-Germanic faludaz