Strong's #3082: Lustra (pronounced loos'-trah)
 of uncertain origin; Lystra, a place in Asia Minor:--Lystra.
Thayer's Greek Lexicon:
 ́ 
 
  Lustra 
 
 Lystra = "ransoming" 
 1) a city in the eastern part of the great plain of Lycaonia
 
  Part of Speech: noun proper locative
Relation: of uncertain origin
 
Usage:
This word is used 6 times:
Acts 14:6: "They were aware of it, and fled unto  Lystra and Derbe, cities of Lycaonia,"
Acts 14:8: "a certain man at  Lystra, impotent in his feet, being a cripple"
Acts 14:21: "many, they returned again to  Lystra, and to Iconium, and Antioch,"
Acts 16:1: "he to Derbe and  Lystra: and, behold, a certain disciple"
Acts 16:2: "the brethren that were at  Lystra and Iconium."
2 Timothy 3:11: "at Iconium, at  Lystra; what persecutions I endured: but"