Webster's Revised Unabridged Dictionary · 1913

Infant

Infant , noun

[Latin infans; pref. in- not + fari to speak: compare French enfant, whence Old English enfaunt. See Fame, and compare Infante, Infanta.]

1.
A child in the first period of life, beginning at his birth; a young babe; sometimes, a child several years of age.
And tender cries of infants pierce the ear. — C. Pitt
2.
(Law) A person who is not of full age, or who has not attained the age of legal capacity; a person under the age of twenty-one years; a minor.

An infant under seven years of age is not penally responsible; between seven and fourteen years of age, he may be convicted of a malicious offense if malice be proved. He becomes of age on the day preceding his twenty-first birthday, previous to which time an infant has no capacity to contract.

3.
Same as Infante. [Obsolete] — Spenser

Infant , adjective

1.
Of or pertaining to infancy, or the first period of life; tender; not mature; as, infant strength.
2.
Intended for young children; as, an infant school.

Infant , transitive verb

[Compare French enfanter.]

To bear or bring forth, as a child; hence, to produce, in general. [Obsolete]
This worthy motto, “No bishop, no king,” is... infanted out of the same fears. — Milton