falling rhythm

n.
A rhythmic pattern in which the stress regularly occurs on the first syllable of each foot, as in Jack and Jill went up the hill.

falling rhythm (also called ‘descending rhythm’), a rhythmical effect often found in metrical verse in which the unstressed syllables are perceived as being attached to the preceding stressed syllables rather than to those following. In the terms of classical prosody, lines composed of dactyls or trochees may be marked by falling rhythm, although this is not inevitable. Falling rhythm is less common in English verse than its opposite, rising rhythm.