The Collaborative International Dictionary of English v.0.48:

henpeck \hen"peck`\, hen-peck \hen"-peck`\(h[e^]n"p[e^]k`), v.
   t. [imp. & p. p. Henpecked (h[e^]n"p[e^]kt`); p. pr. & vb.
   n. Henpecking.]
   To bother persistently with trivial complaints; to subject to
   petty authority; -- said of a woman who thus treats her male
   companion, especially of wives who thus dominate their
   husbands. Commonly used in the past participle (often
   adjectively); as, henpecked for years, he finally left her.
   [1913 Webster +PJC]

WordNet (r) 3.0 (2006):

henpecked
    adj 1: harassed by persistent nagging [syn: dominated,
           henpecked]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "henpecked":
   abused, browbeaten, downtrod, downtrodden, ground down,
   in leading strings, misused, on a leash, on a string, oppressed,
   ordered around, overborne, regimented, servile, slavish,
   submissive, trampled, tyrannized, unmanned