choose the word that fits the defenition - a linguistic element that is added to the end of a word or base

Answer;

Suffix

Explanation; Adding affixes to the beginning or end of the root or base word may build new words by modifying existing words. A suffix is a type of affix or an element placed at the end of a word to form a derivative, such as - ation, - fy, - ing. Prefix is another type of affix that is added at the beginig of a word to adjust or qualify its meaning, e. g. re - and non-.