Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† ănīsum (ane-), i, n., = ἄνισον, anise: Pimpinella anisum, Linn.: Et anesum adversum scorpiones ex vino habetur … ob has causas quidam anicetum id vocavere, i. e. ἀνίκητον, all powerful, Plin. 20, 17, 72, § 185 sq. Jan.