gradate
gra·date
verb
2.
pass imperceptibly from one degree, shade, or tone into another
- “The paint on these walls gradates but you don”
Origin
Back-formation from gradation.
Related words
Word family
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.