Lexical Definition

‎מְגִנָּה‎ mᵉginnâh (meg-in-naw') covering H:N-F
from ‎מָגַן‎

sorrow. See also ‎מָגֵן‎.

1) covering
1a) covering, obstinacy, blindness (of the heart)

Usage: 1 form in 1 verse
Form Translated As     In Verse(s)
מְגִנַּת shamelessness of Lam.3.65

Brown-Driver-Briggs

‎מְגִנָּה‎ noun feminine covering, ‎מְגִנַּתלֵֿב‎ Lam 3:65 covering of heart, i.e. a hard shell about the heart = obstinacy, so Ges (compare Qor 6:25 ) RV; or, covering of the understanding, blindness of the heart, so Ew Ke Näg Che.

Brown-Driver-Briggs References

Book Refs
Lamentations 3:65