Longies

For longies, therefore, I cast on sufficiently for the waist, and work a piece of ribbing.

Source: wiktionary

Wool 'longies' are another useful clothing item. These are like leggings that have waterproofing qualities because they are made of wool.

Source: wiktionary

Johnnie was in possession of the long trousers. He put them on. "How do I look in longies, Sam?" he laughed.

Source: wiktionary

It seemed that one firm had been sending its children's long pants, known as "longies," to be made up in men's pants shops, believing the men's pants contractors better qualified to make longies than were the children's knee pants shops, as the latter do not have " the requisite machinery nor the properly trained workers to make the longies," and the firm felt that the quality of the product ...

Source: wiktionary