Where does “lenc” come from?

lenc (Middle High German) comes from German Lenz, from Middle High German lenze, from Old High German lenzo, from Proto-West Germanic langatīn, from Proto-West Germanic lang, from Proto-Germanic langaz, from Proto-Indo-European dlongʰos — long.

Ancestry of “lenc”, step by step

StepLanguageWordMeaning
1GermanLenzspring
2Middle High Germanlenzespring
3Old High Germanlenzospring
4Proto-West Germaniclangatīnspring
5Proto-West Germaniclanglong
6Proto-Germaniclangazlong
7Proto-Indo-Europeandlongʰoslong
Every word from Proto-Indo-European dlongʰos →Every word from Proto-Germanic langaz →Every word from Proto-West Germanic lang →