Where does “roundness” come from?

Roundness derives from Middle English roundnesse, formed from the adjective round with the suffix -ness.

roundness (English): The quality of being round

Definitions

  1. The quality of being round

Ancestry of “roundness”, step by step

roundness traces back through two separate lines of ancestry.

via English round

StepLanguageWordMeaning
1EnglishroundShape; Complete, whole, not lacking; Convenient...
2Middle Englishroundcircle, round
3Old Frenchreontround
4Latinretundusround
5Latinrotundusround, circular; spherical, rotund; rounded,...
6Latinrotōto turn, trend, wheel, roll, swing about, whirl, rotate; brandish
7LatinRotaan ecclesiastical appellate court in the Catholic...
8Proto-Italicrotā
9Proto-Indo-EuropeanHróth₂-eh₂
10Proto-Indo-EuropeanHreth₂-to run

via Middle English roundnesse

StepLanguageWordMeaning
1Middle Englishroundnesse
Every word from Proto-Indo-European Hreth₂-
roundness — Etymology, Origin & Word History | Etymology Explorer