IRWG recently approved a subscription to the Wakareo ā-ipurangi Māori-English-Māori online lexicon, which is a compilation of a number of separate Māori-English and English-Māori dictionary, lexicon, and word-list resources.

The lexicon is available here

At the moment the search form is slow to load initially (it can take 20 to 30 seconds) but after this it loads more quickly.  We have reported this issue to the publisher.