Erosion.
lathe
the word is optimistic
The anagram is mayhem.
The letters 'tighrast' unscrambled spell the word straight.
The letters 'ryadonml' unscrambled spell the word randomly.
Pepsin.
motorcade
quadrivium
therapy
MUSLIN
Laxity
Ridiculous.
lathe
octet
Achieved
the word is optimistic
fascination