Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
μυρσίνησ of a myrtle tree LXX.Neh.8.15
μυρσίνην myrtle LXX.Isa.41.19
μυρσίνη myrtle LXX.Isa.55.13

Liddell-Scott-Jones

μυρσίνη (mursinē) a myrtle tree G:N-F

μυρσίνη-η [],

Attic dialect μυρρίνη [Refs 4th c.BC+]: :— myrtle, Myrtus communis, [Refs 7th c.BC+]

__2 μ. ἀγρία Butcher's broom, Ruscus aculeatus, [Refs 1st c.AD+]
__II myrtle-branch, [Refs 5th c.BC+]
__II.2 myrtle-wreath, [Refs 5th c.BC+]; compare σκόλιον.
__II.3 in plural, the myrtle-wreath-market, ἐν ταῖς μ. [Refs]
__III see at {μύρσινος} [Refs]