Mesoamerica - Middle America; meson - elementary particle with a mass between an electron and a proton. go, yield. The word root ‘geo’ comes from the Greek word ge- that means ‘Earth’. Medical Dictionary, © 2009 Farlex and Partners. insomnia - inability to fall asleep; somniloquy - talking in your sleep; somnolent - feeling sleepy. thanked the writer. vice-president - the person next in rank to the president. blurted this. gon. A list of common prefixes, suffixes, and root words in biology with definitions and examples. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. polytheism. pedal - a lever pushed by the foot; pedestrian - one who walks; pedicure - cosmetic treatment of feet and toes. Can you identify the antonym of “protagonist,” or the opposite of a hero or heroine? Learn vocabulary, terms, and more with flashcards, games, and other study tools.