Webster's Revised Unabridged Dictionary · 1913

Alias

Alias ({not transcribed}) , adverb

[Latin, from alius. See Else.]

(a)
(Law) Otherwise; otherwise called; -- a term used in legal proceedings to connect the different names of any one who has gone by two or more, and whose true name is for any cause doubtful; as, Smith, alias Simpson.
(b)
(Law) At another time.

Alias ({not transcribed}) , noun

[Latin, otherwise, at another time.]

(a)
(Law) A second or further writ which is issued after a first writ has expired without effect.
(b)
(Law) Another name; an assumed name.