WordNet Dictionary- [adv] in a direct course; "plunged straightway to the rocks below"
- [adv] at once; "straightway the clouds began to scatter"
Webster's 1913 Dictionary\Straight"way`\, adv.
Immediately; without loss of time; without delay.
He took the damsel by the hand, and said unto her,
Talitha cumi. . . . And straightway the damsel arose.
--Mark v.
41,42.