Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pĕr-exĭgŭus, a, um, adj., very small, very little (class.): semen perexiguum, Cic. N. D. 2, 32, 81: dies, very short, id. Verr. 1, 2, 6: et perminuta bona corporis, id. Tusc. 2, 13, 30: loci spatium, Caes. B. G. 5, 15: argentum, Liv. 22, 52: ignes, Nep. Hann. 9, 3: frumentum, Caes. B. C. 3, 42.
Adv.: pĕrexĭgŭē, very little, very sparingly: perexigue et γλίσχρως praebere, Cic. Att. 16, 1, 5.