extensión
/eɡstenˈsjon/ · B2 · noun · f
tract
🌾 extensión = ex- (out) + tensión (stretching): stretched out, a wide expanse
From Latin extensio, built on ex- (out) + tendere (to stretch). Something stretched outward gives you extent, an expanse of land, or an extension added onto something. English extension is the same word, so link them directly.