roborare: corroborare: firmare: confirmare. To strengthen the body by food or exercise, corpus firmare cibo (Liv.), labore (Cic.); exercitatio corpus robustum facit (Quint., 5, 10, 82): to strengthen the nerves, nervos confirmare (Caes.): to strengthen the memory, memoriam confirmare (Cic., Quint.): to strengthen the stomach, stomachum corroborare: to strengthen one’s self, se corroborare or reficere; vires reficere: a strengthening medicine, *remedium quod valetudinem confirmat, or quod valetudini firmandae, corroborandae adhibetur (☞ not firmamentum in this sense): to strengthen by arguments or witnesses, confirmare, with or without rationibus or argumentis; probare; comprobare (to declare to others as true, valid, or fit): by anything, aliqua re: by examples, exemplis comprobare, firmare, affirmare, confirmare (to strengthen the truth of anything); fidem alicui rei addere (to add confirmation or credit to anything).