Strong's #2487: ichnos (pronounced ikh'-nos)
 from ikneomai (to arrive; compare 2240); a track (figuratively):--step.
Thayer's Greek Lexicon:
 ̓́ 
 
  ichnos 
 
 1) a footprint, track, footstep
 2) in the NT, metaphorically of imitating the example of any one
 
  Part of Speech: noun neuter
Relation: from ikneomai (to arrive, compare G2240)
  Citing in TDNT: 3:402, 379
 
Usage:
This word is used 3 times:
Romans 4:12: "but who also walk in the  steps of that faith of our father"
2 Corinthians 12:18: "walked we not in the same  steps?"
1 Peter 2:21: "an example, that ye should follow his  steps:"