Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
phīlĭtĭa (in MSS. also phīdĭtĭa), ōrum, n., = φιλίτια (φιδίτια and φειδιτια), the public meals of the Lacedœmonians, Cic. Tusc. 5, 34, 98.