Meaning

noun the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood

originEtymology tree Proto-Indo-European *dweh₂- Proto-Indo-European *-rós Proto-Indo-European *dweh₂rós Proto-Italic *dūros Latin dūrus Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Latin -ō Latin dūrō Proto-Indo-European *-mn̥ Proto-Italic *-mn̥ Latin -men Latin dūrāmenbor. English duramen Borrowed from Latin dūrāmen.

Etymology from Wiktionary, CC BY-SA 3.0