They are most definitely stronger and faster than humans, also their bones are near indestructible by normal means (swords, punches whatever).
The translation of Dakhor to malicious Dor would make sense if the phrase 'arkh' was actucally part of it and not D'akh'or. Also Dominion itself, which I think is the Shard fueling Dakhor or at least has the strongest connection to it, isn't malicious.
In the case of Dakhor Monks the Domination aspect could be that they 'dominated' (could also be devotion to some cause) their sDNA or mind and thus changed their physical shape through altered selfperception (twisted bones forming ancient fjordell letters -> Connection to a region) in conjunction with the responsible Shards investiture... (This last paragraph was a bit messy, but I hope I made myself roughly clear ^^)