My Suggestions

1

part. · class 14 · when time

  1. when; while (temporal marker or copula)

rĩ-2

conc. prefix · class 14 · n p.c

  1. n., a., p.c., & p. subj. prefix, cl. 5; 2. when duplicated this prefix forms the 'near' dem., a. & p., cl. 5; ithanwa rĩrĩ this axe; (freq. used without a noun to indic. time) o rĩrĩ ndoka just at the moment when I had come; rĩrĩrĩngi the next moment after that, suddenly

Example: "Iria ria Victoria rĩ mwena wa Kisumu." — Lake Victoria is near Kisumu.