By reduplication from an unused root meaning to shale off as bark; a scale (of a fish); hence a coat of mail (as composed of or covered with jointed plates of metal) -- mail, scale.
H7193. qasqeseth
קַשְׂקֶ֫שֶׂת noun feminine scale of fish, etc.; — of water-animals having וְק ׳סְנַמִּיר fin and scale Deuteronomy 14:9-10, = Leviticus 11:9-10, 12; plural קַשְׂקַשִׂים, of scale-armour 1 Samuel 17:5; plural suffix קַשְׂקְשׂתֶיךָ Ezekiel 29:4 (twice in verse) (of Pharaoh under figure of crocodile).
קַשׁ see קשׁשׁ.
קשׁא (√ of following; compare Arabic , Ethiopic Late Hebrew קִשּׁוּת, Punic κισσου Löwp. 408, all cucumber (s) (Löwp. 330), so probably Assyrian ‡iššû; compare Syriac id. (Lexicons), ᵑ7Jer i. Numbers 11:4 plural קַטַּיָּיא (ט for ת after ק); Greek σίκυος σικύη LagArm. Stud. § 1975; M ii. 356 LewyFremdw. 30).