Verbs for Strenuous

subject to—; —accentuates; —aggravates; — declines; —taxes; —tenses; —wanes; — weighs upon; allay—; alleviate—; attach—to; avoid—; demand—; ease—; emphasize—; entail—; lay—upon; mitigate—; occasion—; palliate —; pronounce—; redouble—; relax—.