DictionaryRoot: wenian
Old English
wenian
to accustom, habituate
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verb
wean
WEEN/wiːn/
To gradually accustom a young child or animal to food other than milk.
Etymology
Old English wenian meant “to accustom.” The nursing sense may come from accustoming a baby to a new diet, from related prefixed verbs meaning “unaccustom,” or both.