BT Yev 63a(37) :סק דרגא בח{ד}<ר> שושבינא‏ : go up a level (and) choose a best man
See the entire entry for bḥr vb. to choose

BT Yev 63a(37) :נחות דרגא ונסיב איתתא‏ : go down in status and take a wife
See the entire entry for dreḡ, dargā n.m. stairway, step(s)