Where does “blustereth” come from?

blustereth (English) comes from English bluster, from Middle English blusteren — to wander about aimlessly.

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

Definitions

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

Ancestry of “blustereth”, step by step

blustereth traces back through two separate lines of ancestry.

via English bluster

StepLanguageWordMeaning
1EnglishblusterPompous, officious talk; A gust of wind; Fitful...
2Middle Englishblusterento wander about aimlessly

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Middle English blusterenEvery word from English bluster