Here is what I came up with. The "x" symbol represents unknown titles that exist for sure. Where "x" stands i think it's very unlikely to see a player with that title, because stamina and tenacity are very similar, it's almost impossible to find someone who has a lot of stamina but no tenacity & vice versa. The total number of titles + possible titles in this list is 25, so I am missing 2. The ones which are in italic and have a "?" are a bit questionable, probably not what they represent(correct me plz). Can't think of anything else =/
STAMINA/TENACITY/AGILITY/ACCURACY
swift - agility
perceptive - accuracy
x - tenacity
x - stamina
sturdy - accuracy + stamina
volcanic - stamina+tenacity
spirited - agility+accuracy
adventurous - tenacity + agility
furious - agility + stamina ?
adamant - tenacity + accuracy ?
berserk - agility+stamina+tenacity
volatile - agility + tenacity + accuracy
fearless - accuracy+stamina+tenacity
frantic - agility+stamina+acc ?
versatile - balanced ?
ambitious - balanced but weaker ?
MEMORY/PRECISION/READING
sage - memory
sharpshooter - precision
pirate - memory + precision
+5 unknown, yet to be seen after reading skill implementation
SPECIAL
developer