Webster's Revised Unabridged Dictionary · 1913

Infect

Infect , adjective

[Latin infectus: compare French infect. See Infect, transitive verb]

Infected. Compare Enfect. [Obsolete] — Shakespeare

Infect , transitive verb

[Latin infectus, past participle of inficere to put or dip into, to stain, infect; pref. in- in + facere to make; compare French infecter. See Fact.]

1.
To taint with morbid matter or any pestilential or noxious substance or effluvium by which disease is produced; as, to infect a lancet; to infect an apartment.
2.
To affect with infectious disease; to communicate infection to; as, infected with the plague.
Them that were left alive being infected with this disease. — Sir T. North
3.
To communicate to or affect with, as qualities or emotions, esp. bad qualities; to corrupt; to contaminate; to taint by the communication of anything noxious or pernicious. — Cowper
Infected Ston's daughters with like heat. — Milton
4.
(Law) To contaminate with illegality or to expose to penalty.