twifold

The story

1. Proto-Germanic · inherited from*twifaldaz“twofold”
2. Proto-West Germanic · inherited from*twifald
3. Old English · inherited fromtwifeald“double, twofold”
4. Middle English · inherited fromtwifold
5. English todaytwifold

From Middle English twifold, twifald, from Old English twifeald (“double, twofold”), from Proto-West Germanic *twifald, from Proto-Germanic *twifaldaz (“twofold”), equivalent to twi- + -fold. Cognate with Middle High German zwivalt (“double”), Old Norse tvífaldr (“double”), Icelandic tvöfaldur (“double”).