gradation
UK: ɡrəˈdeɪʃ(ə)n | US: ɡrəˈdeɪʃ(ə)n
n. a gradual change from one state, level, or degree to another
n. a series of successive stages or degrees
n. (art/music) a subtle variation in color, tone, or texture
Derived from Latin gradatio ("ascent by steps"), rooted in gradus ("step"). The morpheme grad preserves the core idea of incremental progression, while -ation transforms it into a noun denoting the process or result of such progression. The word evolved in Middle English via Old French, retaining its logical connection to structured, step-by-step change—visible in contexts like color gradients or hierarchical systems.
The gradation of colors in the sunset was breathtaking.
Language learning involves a gradation from simple to complex structures.
The artist used subtle gradations of gray to create depth.
Social hierarchies often show gradation rather than sharp divisions.
The music’s volume increased in a smooth gradation.