Where does “struggleth” come from?

struggleth (English) comes from English struggle, from Middle English struglen.

struggleth (English): Third-person singular simple present indicative...

Definitions

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

Ancestry of “struggleth”, step by step

struggleth traces back through two separate lines of ancestry.

via English struggle

StepLanguageWordMeaning
1EnglishstruggleA contortion of the body in an attempt to escape...
2Middle Englishstruglen

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Middle English struglenEvery word from English struggle