[f. CAVE v.3 + -ING1.] The action of CAVE v.3, lit. and fig.; usually caving in.
1857. R. Tomes, Amer. in Japan, xiv. 330. Stakes or palisades are driven in along the cuttings, to prevent the earth from caving.
1865. Daily Tel., 18 Oct., 7/4. There will be such a caving-in and bulging-out of worthless party walls some day as will ruin speculators.
1870. Echo, 11 Nov. The public regard it suspiciously. They seem to think it the prelude to ‘caving in.’
