Skylar is the Anglicised modern form of the Dutch surname Schuyler, meaning "scholar" — the same surname carried by Eliza Schuyler Hamilton, wife of Alexander Hamilton. The name became phonetically associated with "sky" in contemporary English use, which has helped its modern rise.
Skylar has been in U.S. records since 1990 and has been rising steadily. It is unisex but is used for girls roughly 70% of the time. Today it sits in the U.S. top 65 — a contemporary name with both old Dutch roots and a modern aerial association.
Skylar reduces to one — the number of independence and singular outlook.