One sign of a possible problem is a change in the color of the toenail. Discoloration of the toenails may be due to a variety of reasons. Once the underlying cause is determined, treatment can be administered to restore normal color to the nail. A fungal infection causes a toenail to become discolored. The nail usually turns a dark color from dirt or debris that has become trapped underneath the nail. Other symptoms of fungal infection include a foul smell, thickened nail, crumbled nail or a dull toenail that is misshapen.
Definition of affirm for English Language Learners. : to say that something is true in a confident way. : to show a strong belief in or dedication to (something, such as an important idea)
To state (Latin sto, stand) is to set forth explicitly, formally, or particularly in speech or writing. Assert (Latin ad, to, and sero, bind) is strongly personal, signifying to state boldly and positively what the one making the statement has not attempted and may not attempt to prove. Affirm has less of egotism than assert (as seen in the word self-assertion), coming nearer to aver.