mansuetude (n.) Look up mansuetude at Dictionary.com
"tameness, gentleness, mildness," late 14c., from Latin mansuetudo "tameness, mildness, gentleness," noun of state from past participle stem of mansuescere "to tame," literally "to accustom to the hand," from manus "hand" (see manual (adj.)) + suescere "to accustom, habituate," from PIE *swdh-sko-, from *swedh- (see sodality), extended form of root *s(w)e- (see idiom).