undersong Meaning, Definition & Usage

Un"der*song` noun
Definitions
  1. The burden of a song; the chorus; the refrain. Dryden.
  2. Accompanying strain; subordinate and underlying meaning; accompaniment; undertone.
    In the very [poetry] there often an undersong of sense which none beside the poetic mind . . . can comprehend. Landor.

Webster 1913