'backtrack' originates from English, specifically the words 'back' and 'track' (a compound formation).

'backtrack' was formed as a modern compound from 'back' (Old English 'bæc') + 'track' (from late Old English/Old Norse roots meaning 'path'); it came into common use in the 20th century first in the literal sense and later metaphorically.

Initially it meant 'to go back along a physical path', but over time it evolved to include the current meaning 'to reverse a decision or position'.