If pluja valsi (lujvo form would be lujvla) becomes lujvo, and cmalu valsi (lujvo form would be cmavla) becomes cmavo, then why doesn't bridi valsi (lujvo form is brivla) become brivo?
Apparently the word was created after they got proper religion and no longer created lujvoid gismu.
Maybe some real hardasses will stop using those terms and use the lujvla instead...