Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
fŏrāgo, ĭnis, f. [foro], a dividing-thread in a web: forago filum, quo textrices diurnum opus distinguunt: a forando dictum, Paul. ex Fest. p. 90 Müll.; cf.: forago trames diversi coloris, Gloss. Isid.: residens inter pensa et foragines puellarum, Symm. Ep. 6, 68.