Lexical Definition

‎κατήφεια‎ katḗpheia (kat-ay'-fi-ah) gloominess ^G:N-F
from a compound of ‎κατά‎ and perhaps a derivative of the base of ‎φαίνω‎ (meaning downcast in look)

heaviness.

• demureness, i.e. (by implication) sadness

Abbott-Smith

* κατήφεια, -ας, ἡ (< κατηφής, downcast, Wi 17:4*),
dejection: Ja 4:9.†

Abbott-Smith References

Liddell-Scott-Jones

κατήφεια-εια,

Ionic dialect and Epic dialect κατηφ-είη, ἡ, (κατηφής) dejection (λύπη κάτω βλέπειν ποιοῦσα [Refs 8th c.BC+]; opposed to χαρά, [NT+3rd c.BC+]

_{LSJ Scripture Refs: Jas.4.9}