Latin spissus, crassus, grossus, bassus

From: Joao S. Lopes
Message: 66574
Date: 2010-09-12

Is there an analogous formation in the Latin adjectives spissus "thick", crassus "thick", grossus "thick, fat, large, bulky", bassus "short"? Cou we add de:nsus "dense"  to this group? Are they vernacular Latin words or loanwords from Italic, Celtic, Ligurian neighboors?

crassus < *kratsos ? akin to Greek kratos (g. krateos) < *krh2tos- > *krh2ts-o- ?

JS Lopes