The description of something that is usually described as warm. In the modern sense of things warmthy can more accurately describe things that are warm and friendly. An inviting connotation is made with the use of the word warmthy.
Wow what warmthy crotch region you have. That's a very warmthy pillow. The blood of that sacrificed pagan sure was warmthy.
The illusion of warmth brought by winds from the south, particularly impacting the northern Midwest states, where this is commonplace during the spring, autumn,and winter seasons.