We found one dictionary that defines the word to the back:

Phrases: to break the back, to see the back of, to take the back track, to turn the back, to turn the back on one, more... ▸ Words similar to to the back ▸ Usage examples for to the back ▸ Idioms related to to the back ▸ Wikipedia articles (New!) ▸ Words that often appear near to the back ▸ Rhymes of to the back ▸ Invented words related to to the back