STALK n.
ted in a core to strengthen it; a core arbor. Stalk borer (Zoöl.), the larva of a noctuid moth (Gortyna nitela), which bores in the stalks of the raspberry, strawberry, tomato, asters, and many other garden plants, often doing much injury.
STEP- n.
A prefix used before father, mother, brother, sister, son, daughter, child, etc., to indicate that the person thus spoken of is not a blood relative, but is a relative by the marriage of a parent; as, a stepmother to X is the wife of the father of X, married by him after the death of the mother of X. See Stepchild, Ste…