The story
- Proto-Germanic · inherited from*mōdērlīkaz“motherly, maternal”
- Old English · inherited frommōdorlīċ“motherly, maternal”
- Middle English · inherited frommoderly
- English todaymotherly
From Middle English moderly, from Old English mōdorlīċ (“motherly, maternal”), from Proto-Germanic *mōdērlīkaz (“motherly, maternal”), equivalent to mother + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.