gzhug

གཞུག
put, enter and accept, put into, end, extremity, SA 'jug pa, to take part in, to participate in, to leave in [JV]

ft. of 'jug pa to enter, sincere, enter and accept, end, extremity; culmination; seasonal [RY]

[f 'jug pa enter, be sincere, enter and be accepted [Notes. Both words are needed convey entering into the mandala and being accepted by the guru] end, extremity [IW]