many a time and oft

Repetition for emphasis.

• "Signor Antonio, many a time and oft In the Rialto you have rated me About my monies, and my usances:"
• "And all that winter, when at night The wind blew from the mountain-peak, 'Twas worth your while, though in the dark, The church-yard path to seek: For many a time and oft were heard Cries coming from the mountain-head:"
• ""How? And art thou indeed Little John, and Robin Hood's own right-hand man? Many a time and oft I heard of thee, but never did I hope to set eyes upon thee.[…]""
• "The three girl friends were seated on the rocks, enjoying the evening scene and the air which was fresh but not too chilly. Many a time and oft were they wont to come there to that favourite nook to have a cosy chat beside the sparkling waves and discuss matters feminine,[…]."