Definition of "straightway"
straightway2
adverb
not comparable
(dated) Synonym of straightaway or straight away (at once, immediately).
Quotations
Now, if in a stage coach in the depth of winter, when three passengers are warm and snug, a fourth, all besnowed and frozen, descends from the outside and takes place amongst them, straightway all the three passengers shift their places, uneasily pull up their cloak collars, re-arrange their "comforters," feel indignantly a sensible loss of caloric—the intruder has at least made a sensation.
1848 April – 1849 October, E[dward] Bulwer-Lytton, chapter I, in The Caxtons: A Family Picture, volume II, Edinburgh, London: William Blackwood and Sons, published 1849, part IX, page 88
Now one day of the days, […] the Sultan cast his eyes upon her as she stood before him, and said to his Grand Wazir, "This be the very woman whereof I spake to thee yesterday, so do thou straightway bring her before me, that I may see what be her suit and fulfil her need."
1885–1888, Richard F[rancis] Burton, transl. and editor, “Night 547”, in A Plain and Literal Translation of the Arabian Nights’ Entertainments, now Entituled The Book of the Thousand Nights and a Night […], Shammar edition, volume (please specify the volume), [London]: […] Burton Club […]
(nonstandard) Directly.
Quotations
But like as eyes not strong enough to look upon the sun yet do gladly look upon the objects which are by the sun enlightened, so, souls which have already strength to delight in the beauty of chastity are yet not straightway able to consider in her very self that truth which charity hath her light, insomuch that when it cometh to the doing of somewhat that is adverse to truth, they should so start back in horror as they do start back in horror if aught be proposed to be done that is adverse to chastity.
1890, Philip Schaff, NPNF1-03: On the Holy Trinity; Doctrinal Treatises; Moral Treatises, page 96