Usage: 2 forms in 9 verses
Form Translated As     In Verse(s)
λάγανον a pancake LXX.2Sam.6.19
pancake LXX.Exod.29.23LXX.Lev.8.26LXX.Num.6.19
λάγανα cakes LXX.1Chr.23.29
pancakes LXX.Exod.29.2LXX.Lev.2.4LXX.Lev.7.12LXX.Num.6.15

Liddell-Scott-Jones

λάγανον (laganon) a pancake G:N-N

λάγανον [λᾰ], τό,

a thin broad cake, of meal and oil, like{ἴτριον}, [LXX+5th c.BC+]; ἑλκύειν λ., cf. Latin tracta, Chrysipp.Tyan. cited in [Refs 2nd c.AD+]:— diminutive λᾰγάνιον, τό, [Refs 2nd c.BC+]

LSJ Scripture Refs: LXX.Lev.2.4LXX.2Kgs.6.19