Other forms: repainted, repainting, repaints
To repaint is to put a fresh coat of colour on something already painted. Same surface, new paint.
It is one of the largest family of re- verbs in English, alongside rebuild, rewrite and reopen, all meaning to do the thing again. The noun is a repaint, which car restorers use for a body resprayed in a different colour, and a car that has had one is worth less if the change was hidden. Redecorating is the whole job of which repainting is a part.
1verbrepaintTo paint something again.
“They repainted the hall a much lighter colour.”
Old French
peintier
Middle English
peynten
English
paint
English, today
repaint
Built from
From re- + paint. paint comes from Middle English peynten, from Old French peintier. From Middle English peynten, from Old French peintier, paincter, itself from paint, the past participle of paindre, from Latin pingō (“to paint”) (perfect passive participle pictus). Displaced native tēafor, tīefran (“to paint”); and mētan and mǣlan (“to paint, mark with colour”).
Etymology from Wiktionary, CC BY-SA