zhè / bù / gǔ / jí / wéi / yán / jiū / zhè / gè / cí / de / lái / yuán / tí / gōng / le / xīn / de / shū / zhèng这部古籍为研究这个词的来源提供了新的书证。This ancient book provides new written evidence for researching the origin of the word.