*térh₁-/tr̥h₁-

http://lila-erc.eu/data/lexicalResources/LIV/id/Themes/242381543373184099745884378902290266502100844845 <https://ontolex.github.io/morph/Morph>

*térh₁-/tr̥h₁- 
PIE 

data from the linked data cloud