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

→ English arm (inherited)
→ English arm (inherited)
→ English armth (mention)
→ Old English arm (inherited)
→ Old English earm (inherited)
→ Cimbrian arm (inherited)
→ Cimbrian arm (inherited)
→ German arm (inherited)
→ German Arm (inherited)
→ Middle Dutch arm (inherited)
→ Middle Dutch arm (inherited)
→ Middle English arm (inherited)
→ Middle English arm (inherited)
→ West Frisian earm (inherited)
→ West Frisian earm (inherited)
→ Central Franconian Ärm (inherited)
→ Jersey Dutch arm (inherited)
→ Old High German arm (inherited)
→ Old High German arm (inherited)
→ Dutch arm (inherited)
→ Dutch arm (inherited)
→ Old Dutch arm (inherited)
→ Old Dutch arm (inherited)
→ Old Frisian erm (inherited)
→ Old Frisian erm (inherited)
→ Old Saxon arm (inherited)
→ Old Saxon arm (inherited)
→ Scots arm (inherited)
→ Scots arm (inherited)
→ Saterland Frisian äärm (inherited)
→ Saterland Frisian Íerm (inherited)
→ Yiddish אָרעם (inherited)
→ Yiddish אָרעם (inherited)