Where does “buydown” come from?

buydown (English) comes from English buy, from Middle English byen, from Old English bycġan, from Proto-West Germanic buggjan, from Proto-Germanic bugjaną, from Proto-Indo-European bʰewgʰ- — to bend; curve, arch.

buydown (English): An accelerated repayment of the principal of a...

Definitions

  1. An accelerated repayment of the principal of a...

Ancestry of “buydown”, step by step

buydown traces back through two separate lines of ancestry.

via English buy

StepLanguageWordMeaning
1EnglishbuyTo obtain in exchange for money or goods; To...
2Middle Englishbyento buy
3Old Englishbycġanto buy, pay for, acquire, redeem, ransom,...
4Proto-West Germanicbuggjanto buy
5Proto-Germanicbugjanąto deal; do business; exchange; to purchase; buy;...
6Proto-Indo-Europeanbʰewgʰ-to bend; curve, arch

via English Down

StepLanguageWordMeaning
1EnglishDownusually known as County Down
2Middle Englishdoundown
3Old Englishdūnhill, down; hill, dune; hill, mountain
4Proto-Germanic*dūnā
5Proto-Celticdūnomstronghold, rampart
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European bʰewgʰ-Every word from Proto-Germanic bugjanąEvery word from Proto-West Germanic buggjan