Answer: ceto

AnswerCrossword Clue
CETOWhale (prefix)
CETOWhale: Comb. form.
CETOWhale: Prefix.
CETOWhale: Prefix
CETOMother of the Gorgons
CETOGorgons' mother
CETOWhale: Comb. form
CETOMother of Medusa
CETOSea goddess who was the mother of the Gorgons