lass.et              V      1 1 PRES ACTIVE  SUB 3 S    
lasso, lassare, lassavi, lassatus  V (1st)   [XXXDX]    lesser
tire, weary, exhaust, wear out;
Syncope   s => vis   
Syncopated perfect often drops the 'v' and contracts vowel
lav.isset            V      1 1 PLUP ACTIVE  SUB 3 S    
lavo, lavare, lavi, lautus  V (1st)   [XXXDX]    lesser
lavo, lavare, lavi, lavatus  V (1st)   [XXXDX]    lesser
lavo, lavare, lavi, lotus  V (1st)   [XXXAX]  
wash, bathe; soak;