Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Luxembourgish kill
German kühl (cognate)
English cool (cognate)
Proto-Germanic *kōlaz (derived)
Proto-West Germanic *kōl(ī) (derived)
Old High German kuoli (derived)
Luxembourgish kal (link)
Low German kool (cognate)
Dutch koel (cognate)

Luxembourgish killen (affix)
Luxembourgish killen (link)
Luxembourgish Schoul (mention)