The story
- Proto-West Germanic · inherited from*tīdungō
- Old Norse · derived fromtíðindi“news, tidings”
- Old English · inherited fromtīdung
- Middle English · inherited fromtiding
- English todaytiding
From a merger of Middle English tiding, tidinge, from Late Old English tīdung, with Middle English tidinde, tidende, from or influenced by Old Norse tíðindi (“news, tidings”), both connected to Old English tīdan (“to befall; happen”). Though it is sometimes assumed that the form in -ind/-end is original and later assimilated to -ing, the cognates Dutch tijding and German Zeitung point to inheritance from Proto-West Germanic *tīdungō. By surface analysis, tide (“time”) + -ing.
Etymology from Wiktionary, CC BY-SA 4.0.