Where does “sinsero” come from?

sinsero (Bikol Central) comes from Spanish sincero, from Latin sincērus, from Proto-Italic senkairos, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “sinsero”, step by step

StepLanguageWordMeaning
1Spanishsincerosincere, honest
2Latinsincērusclean, pure, sound
3Proto-Italicsenkairos—
4Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
5Proto-Indo-Europeankr̥-to turn, to bend
6Proto-Indo-Europeanker-army
Every word from Proto-Indo-European ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →