Where does “Koschter” come from?
Koschter (Luxembourgish) comes from Middle High German kuster, from Old High German kustor, from Latin custor, from Latin cūstos, from Proto-Indo-European (s)kewH- — to cover, bedeck; cover.
Koschter (Luxembourgish): sacristan, sexton
Ancestry of “Koschter”, step by step