When using definitions, the '#1' definition is the one used by most people in most circumstances. For example: dec·i·mate ˈdesəˌmāt verb 1. kill, destroy, or remove a large percentage or part of. "the project would decimate the fragile wetland wilderness" drastically reduce the strength or effectiveness of (something). "plant viruses that can decimate yields" 2. historical kill one in every ten of (a group of soldiers or others) as a punishment for the whole group. As per the common definition, my usage of decimate is correct, whereas you chose to use the archaic, historical definition in an attempt to save face. You are also referencing 'decimate' in terms of a punitive action, which is completely different from what I have used it in reference to. I applaud your attempt but your reading comprehension skills, unfortunately, let you down.