Noun
One who straggles, or departs from the direct or proper course, or from the company to which he belongs; one who falls behind the rest; one who rambles without any settled direction.
Something that shoots, or spreads out, beyond the rest, or too far; an exuberant growth.
Source: Webster's dictionaryA blue straggler is formed from the merger of two stars, possibly as a result of an encounter with a binary system. Source: Internet
Extinct by 1800 or may have been straggler of extant species. Source: Internet