Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
The word submugire could not be parsed. Trying a normal dictionary lookup:
No entries found. Showing closest matches:
sum-multĭplex (subm-), plĭcis, adj., contained many times in another number, Boëth. Inst. Arithm. 1, 22.
sum-murmŭro (subm-), āvi, 1, v. a., to murmur a little or in secrēt (late Lat.), Aug. Conf. 6, 9; 8, 11.
* sum-mūto (subm-), āre, v. a., to change, interchange, substitute one thing for another: hanc ὑπαλλαγὴν rhetores, quia quasi summutantur verba pro verbis, μετωνυμίαν grammatici vocant, quod nomina transferuntur, Cic. Or. 27, 93.