Artificial intelligent assistant

submaster

ˈsubˌmaster
  [sub- 6. Cf. med.L. submagister, F. sous-maître, formerly soubs-maistre.]
  A subordinate, deputy, or assistant master.

14.. Nom. in Wr.-Wülcker 681/18 Hic instructor, a sub⁓mastyr. 1517 in Archæologia LXI. 82 Sir Adam late sub⁓maister of the seid College. 1850 Chubb Locks & Keys 15 With keys for the master, sub-master, and warders.

Oxford English Dictionary

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