This adverb, built from the adjective 'eschatos' (last, extreme), means extremely or in the extreme—at the outermost limit of something. In Mark 5:23, Jairus says his daughter is 'at the point of death' or 'in her last extremity'—ἐσχάτως ἔχει. The phrase is idiomatic, meaning to be in extremis, at death's door. Classical usage of eschatos described geographical extremes, temporal endings, and superlative conditions. The multilingual evidence shows interpretive glosses: at point of death, at the extreme, emphasizing how the adverb intensifies the verbal phrase to mean 'is extremely ill' or 'is dying.'