Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† strychnos, i, m., = στρύχνος, a kind of nightshade, Plin. 27, 8, 44, § 68.
Called also trychnos, Plin. 21, 31, 105, § 177; App. Herb. 74.