Old French aplier, French appliquer, from Latin applicare to join, fix, or attach to; ad + plicare to fold, to twist together. See Applicant, Ply.
#transitive To lay or place; to put or adjust (one thing to another);—with to; as, to apply the hand to the breast; to apply medicaments to a diseased part of the body.
#: He said, and the sword his throat applied. --Dryden.
#transitive To put to use; to use or employ for a particular purpose, or in a particular case; to appropriate; to devote; as, to apply money to the payment of a debt.
#transitive To make use of, declare, or pronounce, as suitable, fitting, or relative; as, to apply the testimony to the case; to apply an epithet to a person.
#: Yet God at last To Satan, first in sin, his doom applied. --Milton.
#transitive To fix closely; to engage and employ diligently, or with attention; to attach; to incline.
#: Apply thine heart unto instruction. --Prov. xxiii. 12.
#transitive To betake; to address; to refer;—used reflexively.
#: I applied myself to him for help. --Johnson.
apply a patch