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alarm, alarum, 'larm, 'larum (n.)

Old form(s): allarmes

arousal, incitement, encouragement

Oth II.iii.24	[Iago to Cassio, of Desdemona] when she speaks, is it not an alarum to love?
Ven.424	[Adonis to Venus, of his heart] To love's alarms it will not ope the gate