1) Complainer 2) Grouch 3) Grumbler 4) Whiner 
dirk or short sword
• (n.) A kind of hanger or sword used as a knife at meals and as a weapon.
Whing'er noun [ See Whinyard .] A kind of hanger or sword used as a knife at meals and as a weapon. [ Scot. & Prov. Eng.] « The chief acknowledged that he had corrected her with his whinger .» Sir W. Scott.