1historical In northern English: = "churchwarden". Compare churchmaster .
2Scottish In certain Scottish cities: an elected officer of an incorporated craft or trade having responsibility for the upkeep of a chapel or altar belonging to that association. Compare "deacon". historical and rare after 16th cent.
3Scottish An officer appointed by a kirk session to administer the secular (especially financial) affairs of a Presbyterian church.
Late Middle English. From kirk + master.