upavasati

  1. to dwell in or at Ja.iii.113; DN-a.i.139.
  2. to live (trs.); to observe, keep (a holy day); only in phrase uposathaṃ upavasati to observe the fast day SN.i.208; AN.i.142, AN.i.144, AN.i.205; Snp.402 (ger upavassa); Ja.iii.444; Snp-a.199; Pv-a.209

pp upavuttha (q.v.). See also uposatha.

upa + vasiti