Dakini

Tibetan Lamas have basically told me that a Dakini is a female angel and that a Daka is a male angel.

quote from English wikipedia: a Dakini--------is an elusive tantric diety that might best be described as a female embodiment of enlightened energy.

In the Tibetan language, dakini is rendered Khandroma which means 'she who traverses the sky' or 'she who moves in space'. Sometimes the term is translated poetically as 'sky dancer' or sky walker'.
endquote.

Many lamas called their young female practitioners "Dakinis" if they were particularly successful in their practices during the 1980s when I met many of them. This might still be the case today.