- collapse (v.)
- 1732, from Latin collapsus, past participle of collabi "fall together," from com- "together" (see com-) + labi "to fall, slip" (see lapse (n.)). The adjective collapsed is attested from c. 1600, from Latin collapsus, and perhaps this suggested a verb. Related: Collapsing.
- collapse (n.)
- 1801, from collapse (v.).
