elementarily,adv.|ɛlɪˈmɛntərɪlɪ| [f. elementary + -ly2.] In a simple or rudimentary manner; also, † by purely physical causes (obs.). 1643R. O. Man's Mort. v. 21 The Rationall Facultie in Man..may as well be producted elementarily by Man.1849Ruskin Sev. Lamps ii. (1855) 52 Explaining elementarily.