In the last post I parenthetically mentioned a PU root “*täsə (UEW: *tisɜ)” ‘birch bark covering for a teepee’. This has been previously reconstructed from very scanty evidence: Komi /tis(k)a/, Forest Nenets /tʲēt/ ([tɕi͡et]), Kamassian [tʰɤʔ]. The latter two point…