interj.
Pronunciation: a grunt articulated as a syllabic m or n with a voiceless onset, or as the syllable ' h ə or ' h ə n , often ending in a glottal stop, and uttered with a range of intonations; often read as ' h ə
Function: interjection
Etymology: imitative of a grunt
Date: 1608
― used to express surprise, disbelief, or confusion, or as an inquiry inviting affirmative reply