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Esperanto okulo
Proto-Indo-European *h₃ekʷ- (derived)
Latin oculus (derived)

Esperanto bluokula (affix)
Esperanto okulharo (affix)
Esperanto okulisto (affix)
Esperanto senokula (confix)
Esperanto okulvitro (compound)
Esperanto okulfrapa (affix)
Esperanto okulumi (suffix)
Esperanto okulumaĉi (suffix)
Esperanto okulŝminko (compound)
Esperanto unuokululo (affix)
Esperanto okulkovro (affix)
Esperanto okulglobo (affix)
Esperanto okulĵeti (affix)