—v.tr.
1 make slow or late.
2 delay the progress, development, arrival, or accomplishment of.
—n. retardation.
Phrases and idioms:
in retard delayed, in the rear.
Derivatives:
retardant adj. & n. retardation n. retardative adj. retardatory adj. retarder n. retardment n.
Etymology: F retarder f. L retardare (as RE-, tardus slow)
Useful english dictionary. 2012.