Where does “unstepmotherly” come from?

unstepmotherly (English) comes from English stepmotherly, from English stepmother, from Middle English stepmoder, from Old English stēopmōdor, from Proto-Germanic steupamōdēr — stepmother.

unstepmotherly (English): Not befitting a stepmother

Definitions

  1. Not befitting a stepmother

Ancestry of “unstepmotherly”, step by step

unstepmotherly traces back through two separate lines of ancestry.

via English stepmotherly

StepLanguageWordMeaning
1EnglishstepmotherlyLike or befitting a stepmother
2EnglishstepmotherThe wife of one's biological father, other than...
3Middle Englishstepmoderstepmother wife of one's father
4Old Englishstēopmōdorstepmother
5Proto-Germanicsteupamōdērstepmother

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Germanic steupamōdērEvery word from Old English stēopmōdorEvery word from Middle English stepmoder