Besides
Besides ({not transcribed}) , adverb
[Old English Same as beside, prep.; the ending -s is an adverbial one, prop. a genitive sign.]
1.
On one side. [Obsolete] — Chaucer. Shak
2.
More than that; over and above; not included in the number, or in what has been mentioned; moreover; in addition.
The men said unto Lot, Hast thou here any besides?
To all beside, as much an empty shade,
An Eugene living, as a Casar dead.
These sentences may be considered as elliptical.
Also: Beside
Besides ({not transcribed}) , preposition