Where does “Tennyson” come from?

I can't write this etymology because the chain provided only contains "English Dennis" going backwards, which doesn't establish a clear etymological path for "Tennyson." To write an accurate one-sentence origin summary, I would need a complete chain showing the word's development through earlier languages (such as Middle English, Old English, or other source languages) with their forms and any known meanings at each stage. Could you provide the full etymological chain for Tennyson?

Tennyson (English): An English patronymic surname

Definitions

  1. An English patronymic surname

Ancestry of “Tennyson”, step by step

StepLanguageWordMeaning
1EnglishDennis—
2Middle EnglishDenis—
3Old FrenchDenis—
4LatinDionȳsiustyrant of Syracuse
5Ancient GreekΔιονύσιος—
6Ancient Greek-ῐοςbelonging to; of”, “belonging to”, “pertaining to
7Proto-Indo-European-yósCreates adjectives from noun or verb stems

Words derived from “Tennyson”

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐος →Every word from Ancient Greek Διονύσιος →