Find the word definition

The Collaborative International Dictionary
pickapack

Pickaback \Pick"a*back`\ (p[i^]k"[.a]*b[a^]k`), adv. On the back or shoulders; as, to ride pickback. [Written also pickapack, pickback, and pickpack.]

Syn: piggyback.

A woman stooping to take a child pickaback.
--R,Jefferies.

Wiktionary
pickapack

adv. (dated form of pickaback English)