Liddell-Scott-Jones

κατατείνω (katateinō) to violently strain ^G:V

κατατείνω,

future - [Refs 5th c.BC+]: aorist -έτεινα (see. below):—stretch, draw tight, [Refs 8th c.BC+]; κ. τὰ ὅπλα draw the cables taut, [Refs 6th c.BC+].

__2 stretch for the purpose of setting a bone, [Refs 5th c.BC+] —also middle, [Refs] —passive, μῦς κατατεταμένος [Refs]
__3 rack, torture, [Refs 4th c.BC+]: metaphorically, [Refs 3rd c.BC+]
__4 stretch out or draw in a straight line, κατέτεινε σχοινοτενέας ὑποδέξας διώρυχας, i.e. he marked out the ditches by drawing straight lines, [Refs 5th c.BC+] make a very long speech, [Refs 5th c.BC+]:—passive, extend throughout, [Refs]
__5 passive, to be tightly bound, [Refs 1st c.AD+].
__6 stretch on the ground, lay at full length, [[Refs 4th c.BC+]:—passive, to be extended over a space, [Refs 6th c.BC+]; πρὸς γῆν πᾶν τὸ σῶμα [Refs 4th c.BC+].
__7 metaphorically, strain, exert, [Refs 2nd c.BC+] (assuming variant):—passive, to be strained, μᾶλλον, ἧττον-τείνεσθαι, [Refs 5th c.BC+] words of hot contention, [Refs 5th c.BC+]; κ. τῷ προσώπῳ strain with the muscles of one's face, [Refs 1st c.AD+]
__7.b overwork, [Refs 2nd c.BC+]
__II intransitive, extend or run straight towards, [Refs 5th c.BC+] it stretches westward up to.., [Refs 5th c.BC+], extend, [Refs 5th c.BC+].
__II.b extend downwards, [Refs 1st c.AD+]
__II.c metaphorically, tend, [Refs 4th c.AD+].
__II.2 strive earnestly, be vehement, [Refs 6th c.BC+]; opposed to χαλάω, [Refs 5th c.BC+] 6.311: frequently in aorist participle with adverbial sense, with all one's force or might, [Refs 6th c.BC+].