Power Thesaurus. 1969. gibberish thesaurus http://www.powerthesaurus.org/gibberish/antonyms (accessed April 15, 2017).
grav & gravi. These ROOT-WORDS are GRAV, GRAVI & GRAVITO meaning HEAVY & WEIGHTY. It comes from the Latin gravis which means HEAVY. It is also necessary to avoid confusion with words that are based on the Root GRAVEL meaning PEBBLY GROUND. You will have a weighty decision to make when you encounter words with GRAV in them; your dictionary will help you! 1. Grave : GRAV e (grave) adj.
Noun. 1. gram-a metric unit of weight equal to one thousandth of a kilogram. g, gm, gramme.ram 1. n. Abbr. g or gm. or gr.