The word "的确" is formed through the fusion of two independent characters, each contributing its core semantic concept to create a new, reinforced meaning. The character "的" (dí) carries the original sense of "true" or "genuine", while "确" (què) means "solid", "firm", or "verified". Their combination is not grammatical but conceptual, merging the idea of "true" with the idea of "confirmed", resulting in a composite term whose meaning, "indeed" or "truly", is stronger and more specific than either component alone, effectively expressing a solid, verified truth.