Resultative compound:
浸 (to soak / immerse) +
湿 (to be wet) - the action plus its result. Often appears in the
把-construction:
把X
浸湿 'soak X through'. Compare
弄湿 (nòng shī, 'get something wet' - less thorough) and
泡 (pào, 'to soak/steep' - usually for tea or laundry).
