nil nisi bonum
nil per os, rarely non per os (n.p.o.)
nil nisi malis terrori
no terror, except to the bad
Notes
The motto of The King's School, Macclesfield.
Words
terror
–
fear, friight, terror
nisi
–
except, if not, unless
mala
–
jaw
malo
–
prefer, to choose
male
–
wickedly, with evil intent