protuber.are V 1 1 PRES ACTIVE INF 0 X
protuber.are V 1 1 PRES PASSIVE IND 2 S Early
protuber.are V 1 1 PRES PASSIVE IMP 2 S
protubero, protuberare, protuberavi, protuberatus V (1st) INTRANS [DXXDS] Late lesser
swell/bulge out; grow forth; stand out (Sax);
Syncope r => v.r
Syncopated perfect often drops the 'v' and contracts vowel
protuberav.ere V 1 1 PERF ACTIVE IND 3 P
protubero, protuberare, protuberavi, protuberatus V (1st) INTRANS [DXXDS] Late lesser
swell/bulge out; grow forth; stand out (Sax);

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.