Retro comes from Latin. It means "back"
Retro, Such as Retrogress.
Retro-. In fact, the Latin word for 'backwards' is the adverb 'retro'. The word 'retro' comes from the prefix 're-', which means 'back'; and the suffix '-tro', which means 'to one direction'.
retrograde
retro- eg: retrograde
Retro diamonds are basically fake diamonds.
Vintage refers to products that have an age to them. Retro are new products designed to elicit redolence of a bygone era. By definition, everything vintage is retro, but retro is not vintage.
Retro cups are all the courses on the bottom row! (including: Leaf and lightning cup)
Backwards, or back in time.
The Latin equivalent of the English command 'Look forwards, look backwards' is Aspice porro, aspice retro. In the word-by-word translation, the verb 'aspice' means '[you] are looking, do look, look'. The adverb 'porro' means 'forwards'. The adverb 'retro' means 'backwards'.
A retro pay deduction is an odd concept. It means that the company forgot to take out the deduction before, so they are correcting the error.
If you mean the channel, try Teletoon Retro.