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 iniuro could not be parsed. Trying a normal dictionary lookup:
in-jūro, āvi, ātum, 1, v. a. [2. in-juro], not to swear (very rare; cf. injuratus): qui injuraverit, Inscr. ap. Mar. Fratr. Arv. p. 70.