Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Germanic *-hw

β†’ English though (derived)
β†’ Old English ge (mention)
β†’ Gothic -𐌿𐌷 (inherited)
β†’ Latin -que (cognate)
β†’ Old Norse nΓ© (affix)
β†’ Old Irish -ch- (mention)