Where does “unilineal” come from?

unilineal (English) comes from English lineal, from Old French lineal, from Latin līneālis, from Latin līnea, from Latin līnum, from Proto-Italic līnom, from Proto-Indo-European līnom — flax.

unilineal (English): Of or pertaining to one side of a family

Definitions

  1. Of or pertaining to one side of a family

Ancestry of “unilineal”, step by step

unilineal traces back through two separate lines of ancestry.

via English lineal

StepLanguageWordMeaning
1EnglishlinealOf a family relationship that includes mothers,...
2Old Frenchlineal—
3Latinlīneālisconsisting of lines, linear, lineal
4LatinlīneaA linen thread
5Latinlīnumflax
6Proto-Italiclīnom—
7Proto-Indo-Europeanlīnomflax

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 līnom →Every word from Proto-Italic līnom →Every word from Latin līnum →