haunt

Verb

Middle English haunten, hanten "to frequent, frequent the company of, dwell in, engage in, practice (a vice or virtue), perform," borrowed from Anglo-French hanter, haunter (also continental Old French), of uncertain origin

Note: The origin of the French word has been much argued over in the past century and a half. Given the initial h aspiré (meaning the initial h was pronounced into early modern French and still blocks elision of preceding vowels), the word has usually been given a Germanic source. Perhaps most frequently it has been traced to the Old Norse verb reflected in Old Icelandic heimta "to draw, pull, call on, claim, crave, get back, recover," despite semantic and phonetic objections. Also proffered has been a presumed Old Low Franconian *haimiþōn "to shelter, accommodate." Both etyma are derivatives of Germanic *haima- "dwelling" (see home entry 1). The possibility of a spoken Latin source has been revived in Dictionnaire étymologique de l'ancien français (on line), which suggests *ambitāre, from Latin ambitus "circuit" (see ambit)—see full discussion and bibliography there.

Noun

Middle English haunt, hant "frequent visiting, resort, a place frequented, habitual practice of something, usage," borrowed from Anglo-French hant, haunt, derivative of hanter "to frequent, haunt entry 1"