Where does “unicuspidal” come from?

unicuspidal (English) comes from English cuspidal, from Spanish -al, from Latin -ālis, from Proto-Italic -ālis — forms relational adjectives.

unicuspidal (English): Having a single cusp

Definitions

  1. Having a single cusp

Ancestry of “unicuspidal”, step by step

unicuspidal traces back through two separate lines of ancestry.

via English cuspidal

StepLanguageWordMeaning
1EnglishcuspidalHaving cusps
2Spanish-alIn adjectives, indicating relation; In nouns,...
3Latin-ālis—
4Proto-Italic-ālisforms relational adjectives

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-Italic -ālis →Every word from Latin -ālis →Every word from Spanish -al →