Kilaay ‘how’ may be structurally opaque, since *laay doesn’t exist on its own. On the other hand, the enclitic =ley ‘like’ could be treated as being suppletively related.
Source: Smith 1974-5: 5309
Source: Smith 1974-5: 5567
Source: Smith 1974-5: 3863
Source: Smith 1974-5: 3180