We don't have synonyms for ganancial yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are financial and gonangial.
(adj) :
(law, historical) Relating to, or held under, the Spanish system of law that controls the title and disposition of the property acquired during marriage by the husband or wife.
(adj) :
(law, historical) Relating to, or held under, the Spanish system of law that controls the title and disposition of the property acquired during marriage by the husband or wife.