Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English am
← Old English eam (inherited)
← Old English eom (mention)
← Middle English am (inherited)
← Middle English em (mention)
← Proto-Germanic *immi (inherited)
← Proto-Germanic *izmi (mention)
← Proto-Germanic *wesaną (mention)
← Old Swedish æm (cognate)
← Gothic 𐌹𐌼 (cognate)
← Ancient Greek εἰμῐ́ (cognate)
← Proto-Indo-European *h₁ésmi (inherited)
← Old Norse em (cognate)

→ English be (link)
→ English be (link)
→ English be (mention)
→ English is (link)
→ English been (mention)
→ English art (link)
→ English were (link)
→ English aren't (link)
→ English 'm (mention)
→ English amn't (suffix)
→ English I'm (mention)
→ English cham (prefix)
→ English cham (mention)
→ English amirite (compound)
→ Old English eam (link)
→ German bin (cognate)
→ Ancient Greek εἰμί (cognate)
→ Latin sum (cognate)
→ Old Norse em (cognate)
→ Sanskrit अस्मि (cognate)
→ Albanian jam (cognate)