a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
1630s, "to plunge or sink in," from L. mergere "to dip, immerse," probably rhotacized from *mezgo, and cognate with Skt. majjati "dives under," Lith. mazgoju "to wash." Legal sense of "absorption of an estate, contract, etc. into another" is from 1726.