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In the temporal examples above, the initial vowel
/u/ of the head noun uru dominates the final /a/ of the
modifier. A different rule occurs with the time inter-
rogative kuna.wrasa 'when, what time' consisting of kuna
‘what! plus urasa ‘hour’ (from Spanish horas ‘hours').
By this rule, which occurs in La Paz, Juli, Socca, Cala-
coa, and Sitajara, the vowel sequence */au/ is realized
as the vowel-glide sequence Jaw/? instead of reducing to
/u:/ or /u/.

In Huancané /a/ followed by /u/ is regularly
realized as /aw/ rather than /u:/ or /u/, as in the

following examples:

kuna ‘what' + uru ‘day' + -sa_ interrogative suffix >

kuna.wru.sa ‘when’

kuna ‘what' + urasa ‘hours’ + -sa_ interrogative >
kuna .wsa.sa (urasa > /usa/ > /wsa/) ‘what time'
jich"a ‘this' + uru ‘day’ >jich"a.wru 'today'

(also in Calacoa)

sapa '‘every' + uru '‘'day' > sapa.wru ‘every day'

Other examples of /aw/ for Huancané are given in Figure

5-1. In Huancané the diphthong */iu/ similarly changes