Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Romanian cu
Proto-Indo-European *ḱóm (inherited)
Proto-Italic *kom (inherited)
Latin cum (inherited)

Corsican (cognate)
Romanian conteni (mention)
Romanian cuminte (compound)
Romanian Malu cu Flori (mention)
Romanian Poiana cu Cetate (mention)
Romanian Puțu cu Salcie (mention)
Romanian Măgura cu Liliac (mention)
Romanian Valea cu Apă (mention)
Romanian Lacu cu Anini (mention)
Romanian Decuseară (mention)
Aromanian cu (cognate)
Sardinian cun (cognate)