protease/ʹprotiayz, -ays/ noun

• archaism
• archaize
• archangel
• archbishop
• archdeacon
• archdiocese
• archduchess
• archduke
• arche-
• Archean
• archegonium
• arch-enemy
• archeo-
• archeology
• archer
• archerfish
• archery
• archetype
• arch-fiend
• archi-
• archidiaconal
• archiepiscopal
• archimandrite
• Archimedes’ principle
• Archimedes’ screw