The most cozy or comfortable; superlative form of cozy.
From cozy with the -est suffix, which forms the superlative degree of adjectives in English, indicating the highest degree of the quality.
Superlatives like 'cozeiest' show how English compares things in three steps (cozy, cozier, cozeiest)—it's a pattern that works for almost all short adjectives!
Complete word intelligence in one call. Free tier — 50 lookups/day.