Name _______________________________________

Lesson 25 Greek combining forms


stere stereo stereophic
typos, typi typical stereotype
psycho psychic psychology
logi, logy logical technology
techni technical architect
arch archives archeology
patri paternal patriarch
genes genesis genealogy
hydro hydrant hydrophobia
phobia phobia acrophobia

TERMS TO KNOW:
Combining forms are word elements that, unlike prefixes and suffixes, may be used in different positions when they are combined with other word elements.

1. The Greek combining forms in the first column become English nouns or adjectives when suffixes are added to form the words in the second column. Does the spelling of some combining forms change when endings are added? _____
2. The words in the last column have been formed by joining two Greek combining forms. Can the same Greek form sometimes be used at the beginning of one word and at the end of another? _____

Lesson Generalization

Suffixes can be added to some Greek combining forms to make English nouns and adjectives.

The noun suffix ant forms the noun hydrant (hydro + ant).
The adjective suffix ic forms the adjective psychic (psycho + ic).
The spelling of the Greek combining form may change slightly when it is joined to other word parts.

Greek combining forms may be joined in the same way that the two parts of a compound word are joined:

fireproof /proofread         patriarch /archeology
(compound words)         (Greek combining forms)

Knowing the meaning of the separate parts will help you to understand the different words made by combining the parts.

© McDougal Littell Inc. Grade 7 Spelling SkillBuilders