Usage: 5 forms in 14 verses
Form Translated As     In Verse(s)
διακοπών breaches LXX.2Sam.5.20LXX.2Sam.5.20
διακοπήσ breach LXX.Mic.2.13
διακοπήν a breach LXX.Judg.21.15
a severance LXX.1Chr.13.11LXX.1Chr.14.11
severance LXX.2Sam.6.8LXX.1Chr.13.11
διακοπή Severance LXX.2Sam.6.8LXX.Prov.6.15
Severance of LXX.1Chr.14.11
a breach LXX.Job.28.4
breach LXX.Neh.6.1
διακοπάσ his breaches LXX.Judg.5.17

Liddell-Scott-Jones

διακοπή (diakopē) a breach G:V

διακοπή, ,

gash, cleft, as in the skull, [Refs 5th c.BC+]; deepseated wound, [Refs 1st c.AD+]; severance of a musical string, [Refs]

__b rupture of a blood-vessel, [Refs 2nd c.AD+]
__II cutting or canal through an isthmus or mountain, [Refs 1st c.BC+]; through a wall or dam, [Refs 1st c.BC+]; narrow channel or passage, [LXX+1st c.AD+]
__III divorce, [LXX+2nd c.AD+]
__IV metaphorically, breach, rupture, quarrel, [LXX+2nd c.AD+]
__V refutation, λόγων [Refs 5th c.BC+]
__VI intermission, [Refs 1st c.AD+]
__VII Grammars, tmesis, [Refs]

LSJ Scripture Refs: LXX.Job.28.4LXX.Deut.24.3LXX.Judg.21.15