plash (n.) Look up plash at Dictionary.com
"small puddle, shallow pool, wet ground," Old English plæsc "pool of water, puddle," probably imitative (compare Dutch plass "pool"). Meaning "noise made by splashing" is first recorded 1510s.
plash (v.1) Look up plash at Dictionary.com
"to splash," 1580s, from plash (n.) and also imitative (compare Dutch plassen, German platschen). Related: Plashed; plashing.
plash (v.2) Look up plash at Dictionary.com
"to interlace," late 15c., from Old French plaissier, from Latin plectere "to plait" (see complex (adj.)). Related: Plashed; plashing.