Where does “sigmoidly” come from?

sigmoidly (English) comes from English ly, from Vietnamese ly — Alternative spelling of li.

Ancestry of “sigmoidly”, step by step

sigmoidly traces back through two separate lines of ancestry.

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li

via English sigmoid

StepLanguageWordMeaning
1EnglishsigmoidCurved in two directions, like the letter "S", or...
2Frenchsigmoïdesigmoid, sigmoidal
Every word from Vietnamese ly →Every word from English ly →