At first it looked like a vast blue fort or Valhalla; but when they began to tuck the coarse meadow hay into the crevices, and this became covered with rime and icicles, it looked like a venerable moss-grown and hoary ruin, built of azure-tinted marble, the abode of Winter, that old man we see in the almanac -- his shanty, as if he had a design to estivate with us.
and Gary, D.H., ESTIVATE: A Model for Calculating Excavator Productivity and Outputs Cost, Engineering, Construction, and Architectural Management, 7(1), 1993, pp.
Declining water levels in these remnant pools provide a cue for some turtles to move to upland habitats, where they overwinter or estivate until the following wet season (Rathbun et al., 2002; Bondi and Marks, 2013).
Epigeic earthworms are exposed to continuous predation during all of their developmental stages, whereas under natural conditions, endogeic or anecic earthworms, which build galleries and subterranean chambers and estivate during part of their life cycle, can exhibit lower predation rates for both adult and juvenile individuals (Brown and James, 2007).
estivate - sleep during summer; "certain animals estivate"