Where does “Jean-Louis” come from?

Jean-Louis (French) comes from French Jean, from English Jean, from English Jeanne, from French Jeanne, from Old French Jehane, from Medieval Latin Johanna, from Latin Joanna, from Ancient Greek Ἰωάννα — God is gracious.

Ancestry of “Jean-Louis”, step by step

Jean-Louis traces back through two separate lines of ancestry.

via French Jean

StepLanguageWordMeaning
1FrenchJeanJohn
2EnglishJeanDenim
3EnglishJeanne
4FrenchJeanneJane, feminine of John
5Old FrenchJehane
6Medieval LatinJohanna
7LatinJoanna
8Ancient GreekἸωάννα
9Hebrewיוֹחָנָה
10HebrewיוֹחָנָןGod is gracious
11HebrewיְהוֹחָנָןGod is gracious

via French louis

StepLanguageWordMeaning
1FrenchlouisA louis: various gold and silver coins issued by...
2Middle FrenchLoïs
3Old FrenchLooïs
4LatinLudovīcus
5Old High GermanHlūtwīg
6Proto-West GermanicHlūdawīgmeaning famous in battle
7Proto-West Germanichlūdloud; sound
8Proto-Germanichlūdazloud; famous
9Proto-Indo-Europeanḱlewtosheard, famous
10Proto-Indo-Europeanḱlew-to hear
11Proto-Indo-Europeanḱel-to cover; to incline
Every word from Hebrew יְהוֹחָנָן