but its also easy to read as streghtened..

his constant low humming used to be a source of aggrivation, but i am inured to to it now..

(its not just i doesn't bother me, or that i have become accustom, its i am a stronger person, i have learned to to not let it bother me..)

its a very common word in the NYTimes crosswords (or so its seems to me) and i have learned its many meaning from clues!