The Spanish word 'picaporte' (meaning 'door latch') comes from Catalan 'picaportes' (meaning 'door knocker'). The Catalan word is a compound formed from 'picar' ('to knock or strike') and 'portes' ('doors'). These Catalan words trace back to Latin: 'picar' derives from Latin 'picare' meaning 'to prick or pierce', while 'portes' comes from Latin 'porta' meaning 'door'. The meaning evolved from a door knocker to a door latch, both being mechanisms attached to doors for different purposes.

Some related Spanish words that might help you remember 'picaporte' include 'picar' (to prick, sting, or chop), 'pico' (beak or peak), and 'puerta' (door). These share the same Latin roots: 'picar' and 'pico' come from Latin 'picare' (to prick), while 'puerta' comes from Latin 'porta' (door). You can think of a door latch as something that 'pricks' or 'catches' into the door frame!

English words related to 'picaporte' through the Latin root 'porta' include 'portal', 'port', 'porch', and 'porter' (one who guards a door). While the 'pic-' part doesn't have many common English cognates, you might recognize it in technical terms like 'pike' (a pointed weapon) or 'pick' (a mining tool), which share the concept of a pointed or piercing object.