archididascalos
noun
ar·chi·di·das·ca·los
-ˌdīˈd-,
-₋ləs
variants or archididascalus
-ləs
plural archididascali
-ˌlī
: a chief teacher (as a headmaster in a school)
Word History
Etymology
Late Greek archididaskalos, from Greek archi- + didaskalos teacher, from didaskein to teach