1: δέησις
(Strong's #1162 — Noun Feminine — deesis — deh'-ay-sis )

is always translated "supplication," or the plural, in the RV. See PRAYER , B, No. 3.

2: ἱκετηρία
(Strong's #2428 — Noun Feminine — hiketeria — hik-et-ay-ree'-ah )

is the feminine form of the adjective hiketerios, denoting "of a suppliant," and used as a noun, formerly "an olive branch" carried by a suppliant (hiketes), then later, "a supplication," used with No. 1 in Hebrews 5:7 . In the Sept., Job 40:22 (Eng. Vers. Job 41:3 ).