operation (n.) 1
effect, force, influence, power
AC IV.xv.26 [Cleopatra to Antony] If knife, drugs, serpents, have / Edge, sting, or operation
E3 II.i.404 [Warwick to Countess] can one drop of poison harm the sea, / Whose hugy vastures can digest the ill / And make it lose his operation?
KL I.i.111 [Lear to Cordelia] By all the operation of the orbs / From whom we do exist
RJ III.i.8 [Mercutio to Benvolio, of a fellow in a tavern] by the operation of the second cup draws him on the drawer