compounding-for example, eyelash, treetop, and waterfall-and other root words, such as read, combine with affixes, as in render and uureadable. Affixes are bound morphemes that are added to words: Prefixes are placed at the beginning, as in replay, and suffixes are placed at the end, as in playing, playful, and player: Like root words, some affixes are English and others come from Latin and Greek. Affixes often change a word's meaning, such as adding un- to bappy to form unbappy. Sometimes they change the part of speech, too; for example, when -tion is added to attract to form attraction, the verb attract becomes a noun. There are two types of suffixes: inflectional and derivational. Inflectional suffixes are endings that indicate verb tense and person, plurals, possession, and comparison; these suffixes are English. Here are some examples: the -ed in walked the -ing in singing the \( -s \) in asks the \( -s \) in dogs the -es in beacbes the \( -s \) in girl's the \( -e r \) in faster the -est in stmniest In contrast, derivational suffixes show the relationship of the word to its root word. Consider these words containing the root word friend: friendly, friendship, and friendless. When a word's affix is "peeled off," the remaining word is usually a real word. For example, when the prefix pre- is removed from previcw or the suffix -er is removed