The Spanish word 'zarzamora' is a compound word that combines two elements: 'zarza' (meaning 'bramble' or 'thorny bush') and 'mora' (meaning 'blackberry'). The first element 'zarza' evolved from Old Spanish 'sarza', also meaning 'bramble'. The second element 'mora' comes from the Latin word 'morum', meaning 'blackberry'. The compound literally describes the blackberry bush itself - the thorny bramble (zarza) that produces blackberries (moras).

This is a very descriptive compound word that literally names the plant based on what it is (a bramble) and what it produces (blackberries). This kind of compound formation is common in plant names across many languages.

Two simpler and more common Spanish words are directly related to 'zarzamora': 'zarza' (bramble/bush) and 'mora' (blackberry). These are actually the two components that make up the compound word. Learning these simpler words first can help you understand and remember 'zarzamora' - it's simply a thorny bush (zarza) that produces blackberries (moras).

While there aren't any common English words directly related to 'zarza', the Latin word 'morum' (blackberry) that gave us Spanish 'mora' is related to the ancient Greek 'móron', which gave us the English word 'mulberry'. Both blackberries and mulberries are similar fruits belonging to different genera - blackberries belong to the genus Rubus while mulberries belong to the genus Morus, named after the Latin word.