Version 1.3 of the Conlanger's Thesaurus is out. It has a few more polysemy maps, a few more grammaticalizations, and an addition to the final section with some notes on the typology of content question words ("who, what, when," etc.). The semantic map I got from "thread" was suitably and ironically tangled.
Some of the work on the Thesaurus has motivated me to make a few refinements to Kahtsaai. The biggest change is that I made some changes to question words. In English and the rest of the Indo-European family, we're used to content question words being obviously related in some way. In English, they all start with wh-, and in the Romance languages with qu-/c-. But it turns out this pattern is very rare in the world's languages, which may have completely unrelated roots for their core set of question words. So, I irregularized Kahtsaai a bit, with *ye'wei where becoming táá, and *ye'pas why becoming łouh.
Related to the question words, I have started to fill out the range of indefinites a bit. In particular, there's now an affix on the question words to mark a free choice indefinite ("pick any one"),
Ye'énał so'ołípto. ye'é-nał sou-n-líp-to what-FREE.CHOICE 2SG-3INAN-select-IMP Pick anything.
Additionally, it struck me that I didn't yet have a way to indicate intensives, I myself did it. In quite a few languages, those are related to the word for body. I didn't feel like using the full noun for body, tsire. Instead, I took the inspiration from the morpheme used in noun incorporation for body, which is -s(i)-. I expanded that a bit, to -ssi', which must be possessed:
Mo keil aassi' yo'áhlektén yolleile. mo keil ats-ssi' yo-'áh-lekté-n yolleile SUBJ soldier 3SG.AN-self 3SG.AN-3PL-save-EVID children The soldier himself saved the children.