Luxembourgish haapt-

← German haupt- (derived)

← German Haupt (mention)

← Middle High German (cognate)

← Rhine Franconian Haapt (mention)

← Rhine Franconian Hääpt (mention)

← Luxembourgish Heet (mention)

→ Luxembourgish Haaptstad (affix)

→ Luxembourgish Haaptsaach (affix)

→ Luxembourgish Haaptfach (affix)