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From hard (adjective) + beam (“only in compounds: tree”, noun).
Etymology from Wiktionary, CC BY-SA 4.0.
hardbeam
hard·beamToday it means: The common hornbeam or European hornbeam tree (Carpinus betulus). Full definition →
Today it means: The common hornbeam or European hornbeam tree (Carpinus betulus). Full definition →
From hard (adjective) + beam (“only in compounds: tree”, noun).
Etymology from Wiktionary, CC BY-SA 4.0.