This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

ad. In an everlasting manner; so as to be everlasting.

ad. In an everlasting manner.

Eternally; perpetually; forever.

For all time, or for an indefinitely long time; permanently; continuously; incessantly: often used hyperbolically: as, you are everlastingly grumbling.

Beyond limitation or bounds; excessively; immoderately: as, he is everlastingly stingy.

ad. for a limitless time

"But there was no Meringe, no Biddy and Terrence and Michael on the beach; no Mister Haggin and Derby and Bob; no beach: no land with the palm-trees near and the mountains afar off everlastingly lifting their green peaks into the sky."