Importunity - Vine's Expository Dictionary of New Testament Words
Importunity
[ 1,,G335, anaidia[-ea] ]denotes shamelessness, importunity" (a, negative, n, euphonic, and aidos, "shame, modesty"), and is used in the Lord's illustration concerning the need of earnestness and perseverance in prayer, Luke 11:8. If shameless persistence can obtain a boon from a neighbor, then certainly earnest prayer will receive our Father's answer.