que TACKON
-que = and (enclitic, translated before attached word); completes plerus/uter;
acerbi.us ADJ 1 1 NOM S N COMP
acerbi.us ADJ 1 1 VOC S N COMP
acerbi.us ADJ 1 1 ACC S N COMP
acerbus, acerba -um, acerbior -or -us, acerbissimus -a -um ADJ [XXXAO]
harsh, strident, bitter, sour; unripe, green, unfinished; grievous; gloomy;
acerbius ADV COMP
acerbe, acerbius, acerbissime ADV [XXXBO]
stridently, with harsh sound; cruelly, harshly; with pain/severity; premature;

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.