Answer:

sapped

Answer	Crossword Clue
SAPPED	Drained
SAPPED	Undermined
SAPPED	Exhausted, as one's strength

SAPPED	Tuckered out
SAPPED	Exhausted
SAPPED	Devitalized
SAPPED	Weakened
SAPPED	Made weak
SAPPED	Drained of energy
SAPPED	Enervated
SAPPED	Depleted

SAPPED	Wiped out

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.