- truculent (adj.)
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- 1530s, from Latin truculentus "fierce, savage, stern, harsh, cruel," from trux (genitive trucis) "fierce, rough, savage, wild." Related: Truculently.
- truculence (n.)
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- 1727, from Latin truculentia "savageness, cruelty," from truculentus (see truculent). Related: Truculency (1560s).