Adding the suffix –ly. Words which do not follow the rules.

truly
duly
publicly
daily
slyly
shyly
fully
wholly
coyly
happily

The short vowel sound ‘o.’

other
mother
brother
nothing
cover
money
some
dozen
wonder
done

Adding the suffix ‘-ally’ which is used instead of ‘-ly’ when the root word ends in ‘–ic.’

basically
frantically
dramatically
historically
nationally
emotionally
accidentally
automatically
traditionally
specifically

The /or/ sound spelled ’a’ before ll and l.

all
ball
call
walk
talk
always
fall
small
also
bald