English

lavanado

Blend of lava + tornado.

Neapolitan or Sicilian lava

English lava

Proto-Indo-European *(s)tenh₂- ‘to thunder’

…

Proto-Italic *tonaō

Latin tonō ‘to thunder’

Spanish tronar ‘to thunder’

Spanish tronada ‘thunderstorm’

Today it means

noun A wind vortex that forms over active lava flows.

Language periods are conventional ranges, not dates for this word.

Etymograph / lavanado