tas SUFFIX
-ness, condition of being; makes abstract noun;
butas N 3 1 NOM S F
butas N 3 1 VOC S F
bua, buae N (1st) F [XXXFS] veryrare
"bubbub"; (natural sound made by infants asking for drink);
ut SUFFIX
-ed, having, having a, provided with; -able;
but.as ADJ 1 1 ACC P F POS
bus, bus N (4th) C [BAXDO] Early lesser
ox, bull; cow; cattle (pl.); (odd form mostly in Varro);
t SUFFIX
-ed, having, having a, provided with; -able;
but.as ADJ 1 1 ACC P F POS
bua, buae N (1st) F [XXXFS] veryrare
"bubbub"; (natural sound made by infants asking for drink);

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.