GRADATE
gradate
(verb) pass imperceptibly from one degree, shade, or tone into another; “The paint on these walls gradates but you don’t see it”
gradate
(verb) arrange according to grades; “These lines are gradated”
Source: WordNet® 3.1
Etymology
Verb
gradate (third-person singular simple present gradates, present participle gradating, simple past and past participle gradated)
(ambitransitive) To change imperceptibly from one gradation of tone etc. to another.
(transitive) To arrange in order of grades.
(transitive, chemistry) To bring to a certain strength or grade of concentration.
Anagrams
• at grade, at-grade
Source: Wiktionary
Gra"date, v. t. Etym: [See Grade.]
1. To grade or arrange (parts in a whole, colors in painting, etc.),
so that they shall harmonize.
2. (Chem.)
Definition: To bring to a certain strength or grade of concentration; as,
to gradate a saline solution.
Source: Webster’s Unabridged Dictionary 1913 Edition