Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Ancient Greek δύο
← Old English twā (cognate)
← English two (cognate)
← Proto-Hellenic *dúwō (inherited)
← Proto-Indo-European *dwóh₁ (inherited)
← Latin duo (cognate)
← Sanskrit द्व (cognate)
← Old Armenian երկու (cognate)

→ English two (cognate)
→ English dyad (mention)
→ English hendiadys (mention)
→ English dicrotic (affix)
→ English duopsony (mention)
→ English Dyophysite (mention)
→ English docosa- (compound)
→ Greek δύο (inherited)
→ Greek δυο (mention)
→ Spanish dos (cognate)
→ Ancient Greek διά (mention)
→ Ancient Greek δίς (mention)
→ Ancient Greek δίδυμος (mention)
→ Ancient Greek δεύτερος (mention)
→ Ancient Greek δυάς (affix)
→ Ancient Greek δοιός (mention)
→ Ancient Greek δυοκαίδεκα (affix)
→ Calabrian Greek dìo (inherited(grk-cal/el))
→ Latin duo (cognate)
→ Latin duplus (mention)
→ Latvian divi (cognate)
→ Translingual Diprotodontia (derived)
→ Translingual Dilepis (affix)
→ Old Norse tveir (cognate)
→ Sanskrit द्व (cognate)