Where does “Landyn” come from?

Landyn (English) comes from English Landon, from Old English lang, from Proto-West Germanic lang, from Proto-Germanic langaz, from Proto-Indo-European dlongʰos — long.

Ancestry of “Landyn”, step by step

StepLanguageWordMeaning
1EnglishLandonAn epoch from 34.3 to 21.7 million years ago, a subdivision of the Paleo-Neogene
2Old Englishlanglong; lasting; old, ancient; advanced
3Proto-West Germaniclanglong
4Proto-Germaniclangazlong
5Proto-Indo-Europeandlongʰoslong
Every word from Proto-Indo-European dlongʰos →Every word from Proto-Germanic langaz →Every word from Proto-West Germanic lang →