tió m (plural tions)
the lowest part of a tree trunk, usually used for firewood as it is not suitable for use as lumber due to the rapidly diverging grain
Etymology
Inherited from Old Catalan tihó, from Latin tītiōnem. Compare Occitan tison, French tison, Spanish tizón.
From Proto-Italic *tītjō (“heating”), possibly from Proto-Indo-European *teyh₁- (“to become hot, melt or to end”).