straightly

From Middle English streightly, streightli, streiȝtli, equivalent to straight +‎ -ly.

straightly (comparative more straightly, superlative most straightly)

1. In a straight manner; without curve or bend.
2. Without deviation; directly.
   • 1817 December 31 (indicated as 1818), [Walter Scott], chapter V, in Rob Roy. […], volume I, Edinburgh: […] James Ballantyne and Co. for Archibald Constable and Co. […]; London: Longman, Hurst, Rees, Orme, and Brown, →OCLC, page 92:

     […] I was directing my course towards it, as straightly and as speedily as the windings of a very indifferent road would permit, […]

3. Immediately; straightaway.
   • 1885, Richard F. Burton, chapter XII, in The Book of the Thousand Nights and a Night, volume I, The Burton Club, page 114:

     After an hour or so the veil lifted and discovered beneath it fifty horsemen, ravening lions to the sight, in steel armour dight. We observed them straightly, and lo! they were cutters-off of the highway, wild as wild Arabs.

• straylight