Find the word definition

Douglas Harper's Etymology Dictionary
re-enlist

also reenlist, 1828, from re- "back, again" + enlist. Related: Re-enlisted; re-enlisting.

Wiktionary
re-enlist

vb. (alternative form of reenlist English)

Usage examples of "re-enlist".

There were plenty among the centurions of the two veteran legions in Capua who had served under Sulla somewhere or other, and even more among the retired centurions who had re-enlisted to train troops.