elliptical/vague interval endpoint status (exclusive/inclusive) marker
Claims that the bridi is true for at least one of the options, but it may or may not be true for both options. The endpoint that is so marked has no grammatical/universal dependency on the status of the other endpoint associated with this word; the math may vary from case to case. Compare to: xai'u'oi. See also: ga'o, ke'i.