IN NOMINE. A somewhat vague name, bestowed, by old English writers, on a certain kind of Motet, or Antiphon, composed to Latin words. It seems to have been used, in the first instance, for compositions the text of which began with the words in question, or in which those words were brought prominently forward: such as the Introit, ‘In nomine Jesu
’; the Psalm, ‘Deus, in nomine tuo
’; and other similar cases. But its signification certainly became more extended:...
