strap (v.) Look up strap at Dictionary.com
"to fasten or secure with a strap," 1711, from strap (n.). Slang adjective strapped "short of money" is from 1857, from strap (n.) in the old sense of "financial credit" (1828). Meaning "to beat with a strap" is from 1735. Related: Strapped; strapping.
strap (n.) Look up strap at Dictionary.com
1610s, "band of leather," from Scottish and/or nautical variant of strope "loop or strap on a harness" (mid-14c.), probably from Old French estrop "strap," from Latin stroppus "strap, band," perhaps via Etruscan, ultimately from Greek strophos "twisted band; a cord, rope," from strephein "to turn" (from PIE root *streb(h)- "to wind, turn"). Old English stropp, Dutch strop "halter" also are borrowed from Latin, and the Old English word might be the source of the modern one. Slang meaning "credit" is from 1828.