Where does “unipinnate” come from?

unipinnate (English) comes from English pinnate, from Latin pinnātus, from Latin Pinna, from Latin penna, from Proto-Italic petnā, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.

unipinnate (English): Being a pinnately compound leaf that does not branch off into further petiole axes, and consequently lacks pinnulae

Definitions

  1. Being a pinnately compound leaf that does not branch off into further petiole axes, and consequently lacks pinnulae

Ancestry of “unipinnate”, step by step

unipinnate traces back through two separate lines of ancestry.

via English pinnate

StepLanguageWordMeaning
1EnglishpinnateResembling a feather; Having two rows of...
2Latinpinnātusfeathered; winged
3LatinPinnaA city of the Vestini situated on the eastern slope of the Apennines, now the town of Penne
4Latinpennawing; feather, especially a flight-feather;...
5Proto-Italicpetnāfeather; wing
6Proto-Indo-Europeanpéth₂r̥wing; feather
7Proto-Indo-Europeanpeth₂-to spread out; to fly

via English uni

StepLanguageWordMeaning
1EnglishuniUniversity; Sea urchin eaten as sushi
2Japanese雲丹the food made from the roe of sea urchin,...
Every word from Proto-Indo-European peth₂-