The story
- Old English · inherited fromþǣræfter“after that; thereafter”
- Middle English · inherited fromtherafter
- English todaythereafter
From Middle English therafter, theraftir, þerefter, þerafter, þeræfter, from Old English þǣræfter (“after that; thereafter”), equivalent to there + after. Cognate with Saterland Frisian deerätter (“thereafter”), West Frisian dêrefter (“behind that; thereafter”), Dutch daarachter (“behind that; thereafter”), German Low German daarachter (“behind that”), Danish derefter (“thereafter”), Swedish därefter (“thereafter”).
Etymology from Wiktionary, CC BY-SA 4.0.