the.com/archbishop

means The senior bishop who oversees other bishops within a particular province or region of the church.

from Built from Greek arkhi- ('chief, first in rank' — the same prefix in 'archangel' and 'architect') fused to 'bishop,' which itself traces back to Greek episkopos, 'overseer' (epi- 'over' + skopos 'watcher'). Latin and Old English passed episkopos down through worn forms like biscop before it smoothed into 'bishop.' So the whole word is really just 'chief overseer' — the Greeks' plain job title for a watcher, dressed up over centuries into ecclesiastical grandeur.