ἴχνοςíchnos

compare G2240 (ἥκω)); a track (figuratively)

Greek (New Testament) · G2487

Meanings

a track, footstep: metaphorically (as frequently in classical Greek), στοιχεῖν τοῖς ἴ., Romans 4:12; περιπατεῖν τοῖς ἴ., 2 Corinthians 12:18; ἐπακολουθεῖν τοῖς ἴ., 1 Peter 2:21.

Same root

ἀνεξιχνίαστοςanexichníastos · G421not tracked out, i.e. (by implication) untraceable

Where it appears

Appears 3 times in the Bible.

Romans 4:12 And Abraham is also the spiritual father of those who have been circumcised, but only if they have the same kind of faith Abraham had before he was circumcised.
2 Corinthians 12:18 When I urged Titus to visit you and sent our other brother with him, did Titus take advantage of you? No! For we have the same spirit and walk in each other’s steps, doing things the same way.
1 Peter 2:21 For God called you to do good, even if it means suffering, just as Christ suffered for you. He is your example, and you must follow in his steps.

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.