Definition of mansuetude in English:

mansuetude

Pronunciation /manˈso͞oətyo͞od/ /mænˈsuətjud/

noun

archaic
  • Meekness; gentleness.

    ‘Take it in hand (with mansuetude) and see it fresh, open the old door into a new room.’
    • ‘They began to answer him with mansuetude and reverence, but afterward he smelled a fox under a sheep's clothing.’
    patience, long-suffering, forbearance, resignation

Origin

Late Middle English from Old French, or from Latin mansuetudo, from mansuetus ‘gentle, tame’, from manus ‘hand’ + suetus ‘accustomed’.