Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
vătĭa, ae, v. vatius.
vătĭus, a, um, adj., bent outwards: (canes) sint cruribus rectis et potius varis quam vatiis, Varr. R. R. 2, 9, 4; hence, of persons with legs bent out wards, bowlegged: quaesitum est, an balbus et blaesus … et varus et vatius sanus sit, Dig. 21, 1, 10 fin.; Mart. 12, 70, 1.
Subst.: vătĭa, ae, m., a bowlegged man: imitari vatias, Varr. L. L. 9, § 10 Müll.; cf. Plin. 11, 45, 105, § 204.