Adam Clarke on Joshua 9:5

Old shoes and clouted - Their sandals, they pretended had been worn out by long and difficult travelling, and they had been obliged to have them frequently patched during the way; their garments also were worn thin; and what remained of their bread was mouldy - spotted with age, or, as our old version has it, bored - pierced with many holes by the vermin which had bred in it, through the length of the time it had been in their sacks; and this is the most literal meaning of the original נקדים nikkudim, which means spotted or pierced with many holes. The old and clouted shoes have been a subject of some controversy: the Hebrew word בלות baloth signifies worn out, from בלה balah, to wear away; and מטלאות metullaoth, from טלא tala, to spot or patch, i.e., spotted with patches. Our word clouted, in the Anglo-Saxon signifies seamed up, patched; from clout, rag, or small piece of cloth, used for piecing or patching. But some suppose the word here comes from clouet, the diminutive of clou, a small nail, with which the Gibeonites had fortified the soles of their shoes, to prevent them from wearing out in so long a journey; but this seems very unlikely; and our old English term clouted - seamed or patched - expresses the spirit of the Hebrew word.