zadŕgniti to tie, to tighten; (s trakom) to lace (tight); (zavozlati) to knot
ne zadrgni vozla premočno! don't pull the knot too tight!
v pasu je bila zelo zadrgnjena (stisnjena) her waist was laced tight
zadŕgniti svojo mošnjo (figurativno) to tighten one's purse strings, close one's purse