adv. [f. CONJECTURAL + -LY2.] In a conjectural manner; by way of conjecture; by guess.
1594. Hooker, Eccl. Pol., I. (1632), 85. Whatsoever may be but probably and conjecturally surmised.
16918. Norris, Pract. Disc. (1707), IV. 151. As some [talk] of a World in the Moon, Problematically and Conjecturally.
1807. G. Chalmers, Caledonia, I. I. iv. 122. Stukeley conjecturally places Coria, at Corsford, below Lanark.
1877. Dowden, Shaks. Primer, iii. 30. The Second Folio 1632 is a reprint of the first conjecturally emended.