Refers primarily to traditional Indian doctors/medicine men. May also refer to modern doctors, or a loanword such as lotoorr (Spanish doctor) could be used.
Ramon Ames' version of this word seems to contain a glottal stop, similar to kwesi'yaay, the variant of Ed Brown from Los Conejos. This word is spelled kusiyaay in the Barona dictionary, possibly suggesting that the "i" is pronounced as by Ramon Ames, with the "i" sound in "igloo". In Mesa Grande, this word is kuseyaay, where in keeping with spelling conventions, the "e" before "y" sounds like "ee" as in "beet".
The ku- suggests that this word was originally derived from a verb.