Usage: 5 forms in 10 verses
Form Translated As     In Verse(s)
διαβάσεωσ ford LXX.1Sam.14.4
fording LXX.Josh.4.8
of a ford LXX.Isa.51.10
διαβάσεων of his fords LXX.Jer.51.32
διαβάσεισ ford LXX.Josh.2.7LXX.Judg.3.28LXX.Judg.12.5LXX.Judg.12.6
διάβασισ ford LXX.2Sam.19.18
διάβασιν ford LXX.Gen.32.22

Liddell-Scott-Jones

διάβασις (diabasis) a ford G:N-F

διάβασις, εως, ,

crossing over, passage, δ. ποιεῖσθαι [Refs 5th c.BC+]; act of crossing, αἱ δ. τῶν ὀχετῶν διασπῶσι τὰς φάλαγγας [Refs 4th c.BC+]

__2 means or place of crossing, [Refs 5th c.BC+]fords, [Refs 5th c.BC+]; bridge, [Refs]; passage along a ship's deck, gangway, [Refs 5th c.BC+]; ferry-boat, [LXX]
__II the Jewish Passover, [Refs 1st c.AD+]
__III τῶν ὡρῶν δ. transition of the seasons, [Refs 2nd c.AD+]
__IV in Grammars, transitive force of Verbs, τὰ ἐν δ. τοῦ προσώπου ῥήματα [Refs 2nd c.AD+]
__V in Rhet. of intervals or pauses in pronunciation caused by long syllables and the like, ῥυθμοὶ πλείστην ἔχοντες δ. [Refs 1st c.BC+]

LSJ Scripture Refs: LXX.2Kgs.19.18