mersare Save DMLBS mersare [CL] , to immerse, submerge, overwhelm (also fig.). Osb. Glouc. Deriv. 358 (v. mersitare); imbecillem ‥ etatem meam ‥ ~abant gurgite flagitiorum Ailr. Inst. Inclus. 32 p. 674; cum ‥ / collegisset opes ‥ / ‥ mersit eas ne mersaretur ab illis Hanv. VI 276.