Syncope r => v.r
Syncopated perfect often drops the 'v' and contracts vowel
declinav.erunt V 1 1 PERF ACTIVE IND 3 P
declino, declinare, declinavi, declinatus V (1st) [XXXAO]
deflect/divert/turnaside/swerve/change direction/deviate/dodge; digress/diverge
avoid/stray; vary/be different; bend/sink down, subside/decline; lower/descend;
declino, declinare, declinavi, declinatus V (1st) TRANS [DGXCO] Late
decline/conjugate/inflect (in the same manner/like); change word form, modify;

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.