Where does “stepdown” come from?

stepdown (English) comes from English down, from Middle English doune, from Old English dūne, from Old English adūne, from Old English ofdūne, from Old English dūn, from Proto-Germanic *dūnā, from Proto-Celtic dūnom — smoke; mist, haze.

stepdown (English): Used to decrease the secondary voltage relative...

Definitions

  1. Used to decrease the secondary voltage relative...

Ancestry of “stepdown”, step by step

stepdown traces back through two separate lines of ancestry.

via English down

StepLanguageWordMeaning
1EnglishdownFrom a higher position to a lower one; downwards;...
2Middle Englishdoune
3Old Englishdūnehill; down, downward
4Old Englishadūne
5Old Englishofdūneoff the hill; down
6Old Englishdūnhill, down; hill, dune; hill, mountain
7Proto-Germanic*dūnā
8Proto-Celticdūnomstronghold, rampart
9Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via English step

StepLanguageWordMeaning
1EnglishstepAn advance or movement made from one foot to the...
2EnglishstepchildThe child of one's spouse but not one's own; A...
3Middle Englishstepchildstepchild child of a spouse
4Old Englishstēopċildstepchild
5Old Englishċildchild, youth; fetus; female baby; child
6Proto-Germanickelþazfetus; newborn; infant; child
7Proto-Indo-Europeanǵelt-womb
8Proto-Indo-Europeanǵel-to swallow; swallow
Every word from Proto-Indo-European dʰewh₂-