herein

The story

1. Proto-Germanic · inherited from*hē₂rinna
2. Proto-West Germanic · inherited from*hērinna
3. Old English · inherited fromhērinne
4. Middle English · inherited fromhere-inne
5. English todayherein

From Middle English here-inne, her-in, her-inne, hier-ine, from Old English hērinne, from Proto-West Germanic *hērinna, from Proto-Germanic *hē₂rinna, equivalent to here + in. Cognate with West Frisian hjiryn (“herein”), Dutch hierin (“herein”), German hierin (“herein”), Danish heri (“herein”), Swedish häri (“herein”), Icelandic hér í (“herein”).