unerring
The word you're looking for is "homework." It has eight letters, with the fifth letter being 'w,' and both the second and last letters being 'o.'
strength
forsooth
mandates
what school subject has eight letters and L as the fifth
Withhold, withheld, fishhook
Boastful
There is no such word in the English language.
romantic
bladders
Invocate
gamma