Where does “portioneth” come from?

portioneth (English) comes from English portion, from Middle English porcioun, from Old French porcion, from Latin portio — share, part, portion; relation, proportion.

Ancestry of “portioneth”, step by step

portioneth traces back through two separate lines of ancestry.

via English portion

StepLanguageWordMeaning
1EnglishportionAn allocated amount; That which is divided off or...
2Middle Englishporciounpart
3Old Frenchporcion
4Latinportioshare, part, portion; relation, proportion

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Latin portio