Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English oar
Old English ār (inherited)
Proto-Germanic *airō (inherited)
Old Norse ár (cognate)

English oar blade (mention)
English paddle (link)
English oarsman (affix)
English rowlock (mention)
English oarlock (compound)
English oarswoman (affix)
English oared (affix)
English oared (affix)
English oarlike (suffix)
English oarweed (compound)
English oarfish (compound)
English oary (suffix)
English oarage (suffix)
English oarless (suffix)
English oarhole (compound)
Danish åre (cognate)
Faroese ár (cognate)
Westrobothnian ar (cognate)
Icelandic ár (cognate)
Japanese オール (borrowed)
Latin remus (cognate)
Latvian airis (cognate)
Norwegian Bokmål åre (link)
Norwegian Nynorsk år (link)
Norwegian Nynorsk åre (link)
Old Norse vǫrr (link)
Sanskrit ईषा (cognate)