English

interfuel

From inter- + fuel.

Formed from inter- + fuel

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Latin focus ‘hearth’

Late Latin focus ‘fire’

Old French feu ‘fire’

Old French fouaille ‘firewood’

Middle English fuayle ‘fuel’

English fuel

Today it means

adj Between types of fuel.

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

Etymograph / interfuel