Main Entry: 1strag·gle
Pronunciation: \stra-gl\
Function: intransitive verb
Inflected Form(s): strag·gled; strag·gling \-g(-)li\
Etymology: Middle English straglen
Date: 15th century
1 : to wander from the direct course or way : rove , stray
2 : to trail off from others of its kind
strag·gler \-g(-)lr\ noun One who straggles.
But I particularly like the description of the 'blue straggler' star which is what confirmed my choice when I first thought of it.
Blue Straggler Star
Astronomy
Main
Star of bluish colour (and thus hot) that is found in old star clusters and that appears to be lagging behind most of the other stars in the cluster in its evolution toward a cooler, reddish state. Blue stragglers tend to be strongly concentrated toward the centre of the cluster. Various theories have been proposed to account for the anomalous behaviour”for example, a blue straggler is the coalescence of two stars whose combined mass has altered the evolutionary state of the product”but no one theory accounts for all cases.