Erosion.
the word is optimistic
lathe
The anagram is mayhem.
The letters 'tinoreiicppat' unscrambled spell the word precipitation.
The letters 'eipylsotmh' unscrambled spell the word polytheism.
pureed
motorcade
quadrivium
fascination
MUSLIN
therapy
Vesper
octet
Laxity
Pepsin.
Ridiculous.
Achieved