IPA: //nɒnˈjɛloʊɪŋ//
KK: /nɒnˈjɛloʊɪŋ/
Not likely to change to a yellow color over time.
The artist chose a nonyellowing paint to ensure the colors remained vibrant for years.
Nonyellowing is formed from "non-" (meaning not) and "yellowing" (from the root "yellow" which comes from Old English "geolu", meaning yellow, combined with the suffix "-ing" which indicates a process or action). The word "nonyellowing" describes the state of not undergoing the process of turning yellow.
Think of 'non-' meaning not, and 'yellowing' referring to the process of becoming yellow. This helps you remember that nonyellowing means not becoming yellow.