Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
rūro, āre, v. n., or rūror, āri, v. dep. n. [id.], to live in the country (perh. only in the two foll. passages): dum ruri rurant homines, Plaut. Capt. 1, 1, 16: dum in agro ruror, Varr. ap. Non. 164, 23.