Esperanto

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Etymology

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(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Pronunciation

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Suffix

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-ono

  1. Marks fractions.
    kvar (four) + ‎-ono → ‎kvarono (a quarter, a fourth)
    du (two) + ‎-ono → ‎duono (a half)
  2. (organic chemistry) -one
  3. (physics) -on

See also

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Italian

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Suffix

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-ono

  1. used with a stem to form the third-person plural present of regular -ere verbs and those -ire verbs that don't take -isc-.