The Collaborative International Dictionary
Malengine
Malengine \Ma*len"gine\, n. [OF. malengin; L. malus bad, evil +
ingenium natural capacity. See Engine.]
Evil machination; guile; deceit. [Obs.]
--Gower.
Wiktionary
malengine
n. (label en archaic) Evil intent, bad intention; fraud, deceit.