per PREFIX
- through, thoroughly, completely, very; adds to the force of the verb;
ust.a VPAR 3 1 NOM S F PERF PASSIVE PPL
ust.a VPAR 3 1 VOC S F PERF PASSIVE PPL
ust.a VPAR 3 1 ABL S F PERF PASSIVE PPL
ust.a VPAR 3 1 NOM P N PERF PASSIVE PPL
ust.a VPAR 3 1 VOC P N PERF PASSIVE PPL
ust.a VPAR 3 1 ACC P N PERF PASSIVE PPL
uro, urere, ussi, ustus V (3rd) [XXXBX]
burn;

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.