Eft*soon" (?), Eft*soons" (?), adv. [OE. eftsone, eftsones; AS. eft + sna soon. See Eft, and Soon.]
Again; anew; a second time; at once; speedily.
[Archaic]
And, if he fall from his capel [horse] eftsone.
Chaucer.
The champion stout eftsoons dismounted.
Spenser.
© Webster 1913.