Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old English earm
Old English earmcearig (link)
Bulgarian ра́мо (cognate)
Old Church Slavonic рамо (cognate)
Danish - (cognate)
German Arm (cognate)
German arm (cognate)
Proto-Germanic *armaz (inherited)
Proto-Germanic *armaz (inherited)
Proto-West Germanic *arm (inherited)
Old High German arm (cognate)
Old High German arm (cognate)
Gothic 𐌰𐍂𐌼𐍃 (cognate)
Gothic 𐌰𐍂𐌼𐍃 (cognate)
Proto-Indo-European *[[h₂er-]]mos (inherited)
Proto-Indo-European - (cognate)
Latin armus (cognate)
Dutch arm (cognate)
Dutch arm (cognate)
Old Norse armr (cognate)
Old Norse armr (cognate)
Old Frisian arm (cognate)
Old Frisian erm (cognate)
Old Saxon arm (cognate)
Old Saxon arm (cognate)
Swedish arm (cognate)
Swedish arm (cognate)

English arm (inherited)
English arm (inherited)
Old English ierfe (cognate)
Old English earmcearig (compound)
Old English earmheort (suffix)
Old English iermþu (suffix)
Middle English arm (inherited)
Middle English arm (inherited)
Persian ارم (cognate)
Old High German arm (cognate)
Old Frisian erm (cognate)
Old Frisian erm (cognate)
Old Saxon arm (cognate)
Old Saxon arm (cognate)
Pennsylvania German Aarm (cognate)
Pennsylvania German aarem (cognate)
Scots arm (inherited)
Scots arm (inherited)