Clear or Murky?
poisonous
clear hear base and see base
victory
-ous
victorious
industry
ous
industrious
harmony
ous
harmonious
membrane
ous
membranous
vigorous
clear
courage
ous
mischief
ous
mischievous
murder
ous
just add it on
herbivore
ous
herbivorous
cautious
dark
ous
porous
outrage
ous
outrageous
grief
ous
grievous
zeal
ous
just add suffix, clear
disastrous
murky
advantage
ous
advantageous
wonder
ous
doesn't follow a rule
injury
ous
injurious
mutiny
ous
mutinous
hazardous
clear
luxury
ous
luxurious
prodigy
ous
prodigious
study
ous
studious
atrocity
ours
clear murky or dark?