Lack of ability, legal qualification , or fitness to discharge therequired duty. Iu re Leonard’s Estate, 95 Mich. 295, 54 N. W. 1082; Iu re Cohn, 7S N.Y. 252; Stephenson v. Stephenson, 49 N. C. 473; Nehrliug v. State, 112 Wis. 037, 88 N. W. 010.In New York, the word ” incompetency ” is used in a special sense to designate thecondition or legal status of a person who is uu- able or unfitted to manage his ownaffairs by reason of insanity, imbecility , or feeble-uiind- edncss, and for whom,therefore, a committee may be appointed; and such a person is designated an” incompetent .” See Code Civ. Proc. X. Y.