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)
A root is a word part that comes from another language, such as Greek or Latin. An affix is a word part that can be attached to either a root or a base word to create a new word. Affixes Affixes can be divided into two categories: prefixes (appear at the beginning of words) and suffixes (appear at the end of words).