The story
- Old English · inherited fromþǣr nēah
- Middle English · inherited fromther nygh
- English todaytherenigh
From Middle English ther nygh, therny, þere-neiȝh, þerneȝ, þernegh, þare-neiȝ, from Old English þǣr nēah, equivalent to there + nigh. Cognate with West Frisian dêrnei (“thereafter”), Dutch daarna (“afterwards”), German danach (“afterwards, thereafter”).
Etymology from Wiktionary, CC BY-SA 4.0.