figurative. To be active, alert, stirring, vigilant. Const. as above; also, to be diligent, exert oneself to (do something). to wake over, to…

To move briskly or energetically; to be on the move, be active, ‘look alive’, bestir oneself. Cf. the reflexive use 6.

intransitive. To move briskly, bestir oneself, frisk.

to let the grass grow under one's feet (also heels) and variants: to delay in acting or in seizing an opportunity. Chiefly in negative contexts.

intransitive. To move about briskly. Cf. jet, v.1 2a.

To give forth an indistinct sound by the blending of many voices, etc.; hence (colloquial) to be in a condition of busy activity, to be all astir. to…