Where does “demonstrateth” come from?

demonstrateth (English) comes from English demonstrate, from Latin demonstratus, from Latin dēmōnstrō, from Latin dē-, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti — afterwards, post; by, at.

demonstrateth (English): third-person singular simple present indicative...

Definitions

  1. third-person singular simple present indicative...

Ancestry of “demonstrateth”, step by step

demonstrateth traces back through two separate lines of ancestry.

via English demonstrate

StepLanguageWordMeaning
1Englishdemonstrateto show how to use; to show the steps taken to...
2Latindemonstratusshown, having been shown; proven, having been...
3Latindēmōnstrōto show, demonstrate, prove
4Latindē-of; from
5Latinof; concerning; about
6Latinpostbehind; after, since, besides, except; behind,...
7Latinposteablative singular of postis
8Proto-Italicpostibehind, after
9Proto-Indo-Europeanpóstiafter
10Proto-Indo-Europeanpósafterwards, post; by, at

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Proto-Indo-European pósEvery word from Latin dē-Every word from Proto-Indo-European pósti
demonstrateth — Etymology, Origin & Word History | Etymology Explorer