enroll (v.)youdaoicibaDictYouDict
mid-14c. (transitive), from Old French enroller "record in a register, write in a roll" (13c., Modern French enrôler), from en- "make, put in" (see en- (1)) + rolle (see roll (n.)). Related: Enrolled; enrolling.
enrollment (n.)youdaoicibaDictYouDict
also enrolment, mid-15c., "act of enrolling," from Anglo-French enrollement, from Middle French enrollement, from Old French enroller "record in a register" (see enroll). Meaning "total number enrolled" is from 1859, American English.
ephebic (adj.)youdaoicibaDictYouDict
1880, from Latinized form of Greek ephebikos "of or for an ephebe," from ephebos "one arrived at puberty, one of age 18-20," from epi "upon" (see epi-) + hebe "early manhood," from PIE *yegw-a- "power, youth, strength." In classical Athens, a youth of 18 underwent his dokimasia, had his hair cut off, and was enrolled as a citizen. His chief occupation for the next two years was garrison duty.