The Spanish verb 'equipar' (meaning 'to equip') comes from the French word 'équiper', which has the same meaning. Interestingly, the French term can be traced back to Old Norse, where 'skipa' meant specifically 'to equip a ship'. This Old Norse word was derived from 'skip', meaning 'ship'. Over time, the meaning broadened from the specific nautical context of equipping ships to the general sense of providing or furnishing anything with what is needed.

Some related Spanish words include 'equipo' (team or equipment), 'equipaje' (luggage or baggage), and 'equipamiento' (equipment or gear). All these words share the same root and relate to the concept of items or resources needed for a particular purpose.

The English word 'equip' is directly related to 'equipar', as both come from the same French source 'équiper'. Other English words in this family include 'equipment', 'equipped', and even 'ship' - though this last connection might be surprising! While 'ship' comes from the Old Norse 'skip', it shows how these maritime terms have influenced our modern vocabulary for equipping and preparing things.