Suffixes

involve

-ment

explore (2)

-er
-ation

child (2)

-hood
-ish

arrive (1)

-al

comfort (1)

-able

agree (2)

-ment
-able

accept (3)

-ance
-able
-ing

attract (2)

-ive
-tion

conscious (2)

-ness
-ly

friend (3)

-ly
-ship
-firendliness

hope (6)

-ness
- ful
- fully
-less
-lessy
-lessnes

threat (3)

-en
-ening
-eningly