roboreous

== English == === Etymology === From Latin roboreus (“oak, oaken, sturdy”), from robur (“reddish oak; strength, hardness”) + -eus (“-eous: forming adjectives”). Equivalent to roborate +‎ -eous. === Adjective === roboreous (comparative more roboreous, superlative most roboreous) (rare) Synonym of oaken, made of oak wood. (rare) Synonym of sturdy, resembling the strength, firmness, &c. of oak. ==== Related terms ==== === References === “† roboreous, adj.”, in OED Online ⁠, Oxford: Oxford University Press, launched 2000.