Basic Guidelines For English Spellings
READ THESE ARTICLES
You need to drop the final l from words that end with a double l before adding endings that begin with a consonant (e.g. -ment, -ful, and -ly):
install | instalment |
skill | skilful |
chill | chilly |
The ending -ness is an exception to this rule:
small | smallness |
ill | illness |
Back to spelling.
You may also be interested in
Adding endings to words that end in -our
Adding endings to words that end in -y