We don't have synonyms for horae yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are horse, horde and horme.
(n) :
(Greek mythology) The goddesses of the seasons and the natural portions of the times of the year, and the laws and orders of time; originally the personifications of nature in its different seasonal aspects, but in later times regarded as goddesses of order in general and of natural justice.
(n) :
(Greek mythology) The goddesses of the seasons and the natural portions of the times of the year, and the laws and orders of time; originally the personifications of nature in its different seasonal aspects, but in later times regarded as goddesses of order in general and of natural justice.