desipi.entem VPAR 3 1 ACC S C PRES ACTIVE PPL
desipio, desipere, desipui, - V (3rd) INTRANS [XXXCO]
act/be foolish; be out of one's mind/lose one's reason/lack rational thought;
desipient.em ADJ 3 1 ACC S C POS
desipiens, (gen.), desipientis ADJ [XXXEO] uncommon
stupid, witless, lacking intelligence; foolish, silly (L+S);

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This, our local install of the popular standby Whitaker's Words, is possible thanks to the resurrection of the venerable project at William Whitaker's Words, where you will also find extensive documentation. The corresponding GitHub repository is where you can submit issues about missing forms and analyses.
This web interface by Walter M. Shandruk.