Sentence:  Father Fogen led the way, his skinny shanks a gleaming white as he <WSD>kirtled</WSD> his cassock about his thighs. I was obliged to do the same, for the hillside above the house was thick with grass and thorny shrubs that caught at the coarse wool skirts of my borrowed robe. 
Meaning of the word marked with <WSD> tags:  To clothe or cover with, or as if with, a kirtle; to hitch up (a long garment) to the length of a kirtle.