Defn: The soil beneath the surface; understratum; subsoil.
UNDERSOLD
Un`der*sold"
Defn: p. p. of Undersell.
UNDERSONG
Un"der*song`, n.
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.
UNDERSPARRED
Un"der*sparred`, a. (Naut.)
Defn: Having spars smaller than the usual dimension; — said of vessels.
UNDERSPEND
Un`der*spend", v. t.
Defn: To spend less than.