Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
βρόμω groaning LXX.Job.17.11
βρόμοσ his groaning LXX.Joel.2.20
βρόμον for groaning LXX.Job.6.7

Liddell-Scott-Jones

βρόμος (bromos) groaning G:N-M

βρόμος,

__Balso βόρμος [Refs 4th c.AD+], , oats, Avena sativa, [Refs 5th c.BC+]
__B.2 wild oats, Avena barbata, [Refs 4th c.BC+]