erg erewhiles • ergal · · · Info · Definitions · Characters · · erg · · Text Latin · · Script 3 · · Length Definitions · · · (noun) a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeter. · · Noun Definition 1 Characters · · e latin small letter e U+0065 g latin small letter g U+0067 r latin small letter r U+0072