Definition of dog-tree in US English:

dog-tree

noun

  • Chiefly English regional. Any of various other plants resembling the dogwood in some way or used to make skewers, especially (a) the elder, Sambucus nigra; (b) the spindle tree, Euonymus europaeus.

Origin

Mid 16th century (in an earlier sense). From dog + tree. Compare dogberry, and later dogwood.

Pronunciation

dog-tree

/ˈdɒɡtriː/