calcanealEnglishMerriam-Webster Dictionaryxpiration'>expiration, expiring, expiry, perishingebbing, fading, shriveling (or shrivelling), waning, wilting, witheringregression, retrogression, reversiondecadence, decay, decaying, declension, decline, declining, degeneration, expiration, expiring, expiry, perishingebbing, fading, shriveling (or shrivelling), waning, wilting, witheringregression, retrogression, reversiondecadence, decay, decaying, declension, decline, declining, degeneration,