Syncope s => vis
Syncopated perfect often drops the 'v' and contracts vowel
deflev.isset V 2 1 PLUP ACTIVE SUB 3 S
defleo, deflere, deflevi, defletus V (2nd) TRANS [XXXCO]
weep (abundantly) for; mourn loss of; express/feel sorrow about; lament/bewail;
defleo, deflere, deflevi, defletus V (2nd) INTRANS [XXXDO] lesser
cry bitterly; give oneself up to tears; weep much/violently/to exhaustion (L+S)

Credits:
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.