Concise Pali-English Dictionary by A.P. Buddhadatta Mahathera
(f.)
a goddess; a queen.
Pali-Dictionary Vipassana Research Institute
devī：A female deva，a nymph，a goddess，a queen
Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Devī：Mother of Mahinda andSanghamittā and wife ofAsoka．
She was the daughter of Deva of Vedisagiri.
Asoka met and married her while on his way to Ujjeni，there to become Viceroy．
When he became king，Devī continued to live at Vedisagiri （Mhv.xiii.6ff； Dpv.vi.16； Sp.i.70）．
She is sometimes called Vedisa-devī （MT.324）.