Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European [[*h₃emós]], [[*h₂eh₃mós]]

Irish amh (inherited)
Scottish Gaelic amh (inherited)
Ancient Greek ὠμός (derived)
Manx om (inherited(gv/sga))
Manx aw (inherited)