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Esperanto bovo
Ancient Greek βοῦς (mention)
Proto-Indo-European *gʷōws (mention)
Latin bos (mention)

Esperanto bovaro (affix)
Esperanto bovino (suffix)
Esperanto bovido (affix)
Esperanto bova (suffix)
Esperanto bovaĵo (affix)
Esperanto virbovo (affix)
Esperanto bovejo (affix)
Esperanto bovisto (affix)
Esperanto gruntbovo (compound)