vesperingadj.
Etymology: < vesper n. + -ing suffix2.Previous versions of the OED give the stress as: ˈvespering.
rare.
the world > animals > birds > flight > [adjective]
1914 T. Hardy in 21 Mar. 9 O vespering bird, how do you know?
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2021).