I am on magento 1.9. So if I understand magento, you add theme translations to app/design/frontend/{site}/{theme}/locale/{locale}/translate.csv. My translate CSV has over several thousand lines which is quite unmanageable. When I try to add new translate csv with a different name it doesn't work. I.E. translate-two.csv.
Does anyone understand how to add a second one or how to better handle these large translate.csv files?