macerate
US /ˈmæsəreɪt/
UK /ˈmæsəreɪt/

1.
2.
(of a solid) become soft or broken up by soaking in a liquid
:
•
The paper began to macerate in the water.
•
Over time, the plant fibers will macerate and decompose.
(of a solid) become soft or broken up by soaking in a liquid