Something About <gu> and <gh>
3. Now sort the words into these groups:
If dia- means “two,” what is a dialogue?
If mono- means “one,” what is a monologue?
If pro- means “before,” what is a prologue?
What is a travelogue?
If cata- means “complete,” why is a catalogue called a catalogue?
Words that end <logue> can usually also be spelled <log>. Dialog, monolog, prolog, travelog, catalog, epilog are all correct spellings, too.
Word Histories. Oddly, the Greek prefix epi- meant both “before” and “after.” So an epilogue is writing that comes at the end of a book (just the opposite of a prologue), but an epigraph is writing that comes at the beginning of a book.