The Spanish verb 'retirar' (meaning 'to withdraw' or 'to remove') is formed from two main components: the Latin prefix 're-' meaning 'back' or 'again', and the Spanish verb 'tirar' meaning 'to pull' or 'to throw'. The base verb 'tirar' itself comes from an ancient Iranian root 'tir' meaning 'arrow'. When these elements combined, the prefix 're-' added the sense of 'back' to the pulling/throwing action of 'tirar', creating the meaning of withdrawing or pulling back.

The simpler and more common Spanish verb 'tirar' is directly related to 'retirar'. While 'tirar' means 'to throw' or 'to pull', adding the 're-' prefix modifies the action to mean pulling or moving something back. You might find it helpful to think of 'retirar' as 'to throw back' or 'to pull back' to connect it with the basic meaning of 'tirar'.

While not directly related, English speakers might find it helpful to connect 'retirar' with the English word 'retire', which shares both similar form and meaning. Both words involve the concept of withdrawing or pulling back, though 'retire' has become more specifically associated with withdrawing from work or public life. The English 'retire' actually came into English through French, which got it from the same Latin elements as Spanish 'retirar'.