Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.
Class I. Words Expressing Abstract RelationsSection VIII. Causation
3. Power in Operation
171. Energy.
ACTIVITY, agitation, effervescence; ferment, fermentation; ebullition, splutter, perturbation, stir, bustle; voluntary energy [See Activity]; quicksilver.
EXERTION (effort) [See Exertion]; excitation (mental) [See Excitation]; resolution &c. (mental energy) [See Resolution].
ACRIMONY, acridity, acritude [obs.]; causticity, virulence, poignancy; harshness &c. adj.; severity, edge, point; pungency [See Pungency].
EXCITANT, stimulant; Spanish fly, cantharides; seasoning (condiment) [See Condiment].
strike, – into, – hard, – home; make an impression.
rousing, irritating; poignant; virulent, caustic, corrosive, mordant, harsh, stringent; double-edged, double-shotted, double-distilled; drastic, escharotic; racy (pungent) [See Pungency]; excitant, excitative, excitatory.
potent (powerful) [See Power]; radio-active.