Root

Original Meaning/

Usage Notes

English Derivatives

Vocabulary

loqu-/locut- [from Latin] 

(verb)

to speak/spoken

circumlocution

colloquial [literally, ‘pertaining to speaking together with (someone else);’ characteristic of spoken language or informal writing that is meant to imitate ordinary conversation.]

elocution [literally, ‘speaking out;’ the technique of speaking clearly and emphatically, especially in public.]

interlocutor [literally, ‘speaker between or among;’ one of the persons who engages in a conversation.]

loquacious [literally, ‘speech-full;’ talkative.]

soliloquy

circumlocution (noun) [literally, ‘spoken around;’ a roundabout way of saying something that could be said more directly and briefly; periphrasis.]

soliloquy (noun) [literally, ‘speaking alone;’ a speech spoken by a person in a drama when no one else is on stage.]

log-/-logy [from Greek]

(noun)

speech

apology

biology [literally, ‘speech about a lifetime;’ the study of living organisms as living and their life cycles.]

ecology

epilogue [literally, ‘speech after or added-on;’ a speech delivered after the conclusion of the action of a play or after the end of a literary work.]

prologue [literally, ‘speech before;’ an introductory speech (to a play) or chapter (to a book); preface.]

theology [literally, ‘speech about a god; the formal study of the nature of gods, a god, or God; the formal study of religion.]

apology (noun) [literally, ‘speaking (oneself) away from;’ a statement asking for forgiveness; a public, legal defense speech.]

ecology (noun) [literally, ‘speech about the home;’ the study of the relationships between organisms, especially humans, and their environment.]