The Collaborative International Dictionary of English v.0.48:
Eventide \E"ven*tide`\n. [AS. [=ae]fent[imac]d. See Tide.] The time of evening; evening. [Poetic.] --Spenser. [1913 Webster]WordNet (r) 3.0 (2006):
eventide n 1: the latter part of the day (the period of decreasing daylight from late afternoon until nightfall); "he enjoyed the evening light across the lake" [syn: evening, eve, even, eventide]