Where does “sincereness” come from?

sincereness (English) comes from English sincere, from Middle French sincere, from Latin sincērus, from Proto-Italic senkairos, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

sincereness (English): sincerity

Definitions

  1. sincerity

Ancestry of “sincereness”, step by step

sincereness traces back through two separate lines of ancestry.

via English sincere

StepLanguageWordMeaning
1EnglishsincereGenuine; meaning what one says or does;...
2Middle Frenchsinceresincere (genuinely meaning what one says or does)
3Latinsincērusclean, pure, sound
4Proto-Italicsenkairos
5Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
6Proto-Indo-Europeankr̥-to turn, to bend
7Proto-Indo-Europeanker-army

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European ker-Every word from Proto-Indo-European kr̥-Every word from Proto-Indo-European ḱer-
sincereness — Etymology, Origin & Word History | Etymology Explorer