BESIDES
besides, in any case
(adverb) making an additional point; anyway; “I don’t want to go to a restaurant; besides, we can’t afford it”; “she couldn’t shelter behind him all the time and in any case he wasn’t always with her”
besides, too, also, likewise, as well
(adverb) in addition; “he has a Mercedes, too”
Source: WordNet® 3.1
Etymology
Preposition
besides
In addition, in addition to.
Other than; except for; instead of.
(obsolete) Beside.
Synonyms
• (in addition): beyond, on top of; see also in addition to
• (other than): barring, besides, save for; see also except
Adverb
besides (not comparable)
(conjunctive) Also; in addition.
(conjunctive) Used to emphasize an additional point, especially an important or stronger reason; Moreover; furthermore.
(conjunctive) Otherwise; else.
(obsolete) On one side.
Source: Wiktionary
Be*sides", Be*side", adv. Etym: [OE. Same as beside, prep.; the
ending -s is an adverbial one, prop. a genitive sign.]
1. On one side. [Obs.] 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 Gen. xix. 12.
To all beside, as much an empty shade, An Eugene living, as a Cæsar
dead. Pope.
Note: These sentences may be considered as elliptical.
Be*sides, prep.
Definition: Over and above; separate or distinct from; in addition to;
other than; else than. See Beside, prep., 3, and Syn. under Beside.
Besides your cheer, you shall have sport. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition