D defs.my
Entry 3 senses Webster, 1913

Client

/klī'-ənt/ · Cli·ent · IPA /ˈklaɪ.ənt/
01 n. A citizen who put himself under the protection of a man of distinction and influence, who was called his patron.
  1. 1.
    A citizen who put himself under the protection of a man of distinction and influence, who was called his patron.(Rom. Antiq.)
  2. 2.
    A dependent; one under the protection of another.
    “I do think they are your friends and clients, And fearful to disturb you.” B. Jonson.
  3. 3.
    One who consults a legal adviser, or submits his cause to his management.(Law)