verb
tinker
TING-kur/tˈɪŋkɝ/
To make small experimental repairs or adjustments.
He tinkers with the music-box mechanism using a small screwdriver.

Etymology
To tinker was to work as a repairer, then to repair roughly or experimentally.
To make small experimental repairs or adjustments.
He tinkers with the music-box mechanism using a small screwdriver.

To tinker was to work as a repairer, then to repair roughly or experimentally.