Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Bengali হাঁটু
← Assamese আঁঠু (cognate)
← Bengali আঁঠু (doublet)
← Sanskrit अष्ठीवत् (derived)

→ Assamese আঁঠু (cognate)
→ Bengali আঁঠু (doublet)
→ Early Assamese আণ্ঠু (cognate)
→ Sylheti ꠀꠑꠥ (cognate)