† ˈpoucer, ˈpouser Obs. rare.
[ME. (?) or AF. pousere, pousir = F. poucier thumb-stall, f. pouce thumb + -ier, -ier. Misread (with n for u) by modern editors as ponser(e, ponsir, and entered in some dicts. as pouncer.]
In the mediæval church in England, A small cap or thimble of gold or silver worn by a bishop on his right thumb after dipping it in consecrated oil; a bishop's thumb-stall.
See Rock Ch. of Fathers (1849) II. vi. 167, and Latin documents there quoted. Perhaps never used in English, exc. by Rock and in mod. Dicts.