knee, to be spent, to be depressed, diminished

knees

degrade, lower, demote, devalue, cause to decline

get head or beard clean shaved

polish, glaze (paper), press, pound, grind, mix, repeat over and again, shave, throttle, choke

trousers reaching down to knees,bermuda shorts, tight pyjamas

gulp, drink a mouthful

mix well or thoroughly, grind, pulverize medicine, to dissolve

increase and decrease, rise and fall

knee lay-down on the ground, Metaphorically: accept defeat, submit to a superior force or stronger person

irrelevant reply, etc.

disgrace in all ways