Where does “alfredus” come from?

alfredus (Latin) comes from Middle English Alfred, from Old English Ælfræd, from Old English ræd, from Proto-Germanic *rād, from Proto-Germanic rēdaz, from Proto-Indo-European Hréh₁dʰos, from Proto-Indo-European Hreh₁dʰ-, from Proto-Indo-European h₂reh₁- — to fit, to fix, to put together.

Ancestry of “alfredus”, step by step

StepLanguageWordMeaning
1Middle EnglishAlfred
2Old EnglishÆlfræd
3Old Englishrædadvice; decision; plan
4Proto-Germanic*rād
5Proto-Germanicrēdazadvice, counsel
6Proto-Indo-EuropeanHréh₁dʰos
7Proto-Indo-EuropeanHreh₁dʰ-to think; to arrange; to succeed, accomplish
8Proto-Indo-Europeanh₂reh₁-to think, reason; to arrange
9Proto-Indo-Europeanh₂er-to fit, to fix, to put together
Every word from Proto-Indo-European h₂er-