jaunir
[ʒoniʀ]1.
verbe transitif [soleil] to turn [something] yellow [papier, herbe]; [thé] to make [something] go yellow [dents]; [nicotine] to stain [doigts]
le temps a jauni les photos — the photos have gone yellow with age
doigts jaunis par la nicotine — nicotine-stained fingers
2.
verbe intransitif to go yellow