Množina: gussets
ETYM French gousset armpit, fob, gusset, dim. of gousse pod, husk; cf. Italian guscio shell, or W. cwysed gore, gusset.
1. A metal plate used to strengthen a joist; SYN. gusset plate.
2. A piece of material inset to strengthen or enlarge a garment; SYN. inset.