Re: : crochet and crotchet. croTchety comes from the latter;

where as crochet comes from the word for hook-- since the work is created with a hook-- the same word root is used in Velcro-- the inventer had one side like velvet (plush) and the other side as small "hooks" that hooked in to the plush side. the "hook" word comes into english as crook-- (as in by hook or by crook) as in a shepard crook..

the inventer of velcro was impressed with how well burrs stuch to his clothing, and set out to make a fastener as effective. (i forget the guys name, but i think he was french..)