Definition of prothonotaryship in English:
prothonotaryship
noun prə(ʊ)ˈtɒnət(ə)rɪʃɪpˌprəʊtəˈnəʊt(ə)rɪʃɪp
historical The office or position of protonotary.
Origin
Mid 16th century; earliest use found in Acts of the Privy Council. From prothonotary + -ship.