Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Assamese এক
← Proto-Indo-Iranian *Háykas (inherited)
← Magadhi Prakrit 𑀏𑀓𑁆𑀓 (inherited)
← Proto-Indo-European *óynos (inherited)
← Sanskrit एक (inherited)

→ Assamese একে (suffix)
→ Assamese একতা (suffix)
→ Assamese এ- (doublet)
→ Assamese একনায়ক (compound)
→ Assamese একাধিপতি (compound)
→ Assamese একো (suffix)
→ Assamese আকো (suffix)
→ Assamese একেলেথাৰিয়ে (compound)