bombilla
/bomˈbiʝa/ · B2 · noun · f
light bulb
💡 bombilla = bomb + -illa (little): a little bomb of light that pops when it dies
Bombilla comes from bomba (bulb-shaped glass globe, also bomb or pump) plus the diminutive -illa, so 'little bomba'. The rounded bulb shape carried over to the light bulb. The same shape-based naming gives the tube for drinking mate, the straw sense.