Lexical Definition

‎קָשַׁח‎ qâshach (kaw-shakh') to harden H:V
a primitive root

harden.

1) to make hard, treat hardly, treat severely
1a) (Hiphil)
1a1) to make hard, make stubborn
1a2) to treat hardly, treat roughly

See Greek: σκληρύνω

Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
תַּקְשִׁ֥יחַ do you harden Isa.63.17
הִקְשִׁ֣יחַ it treats roughly Job.39.16

Brown-Driver-Briggs

[‎קָשַׁח‎]

verb Hiph`il 1. make hard.

2. treat hardly (Arabic be hard, firm, tough; Sabean ‎קסח‎ hardness, severity, cruelty, SabDenkm37); —

1. make hard, stubborn, Imperfect 2 masculine singular ‎תַּקְשִׁיחַ‎ (subject ‎׳‎‎י‎), with accusative ‎לֵב‎ Isa 63:17 (+ ‎מִיִּרְאָתֶ֑ךָ‎).

2. treat hardly, roughly (of ostrich), Perfect 3 masculine singular ‎הִקְשִׁיחַ‎ Job 39:16 (with accusative ‎בָּנֶיהָ‎; read 3 feminine singular ‎הִקְשִׁיחָה‎ Hi Siegf Du); < (Di) Infinitive absolute (Ges«GKC:113z»§ 113z) ‎הַקְשֵׁיח‎ Ew, or Imperfect 3 feminine singular ‎תַּקְשִׁיח‎ Hirz BaeKau Bu.

Brown-Driver-Briggs References

Book Refs
Job 39:16
Isaiah 63:17