Emily Dickinson Lexicon

UT'MOST, a. [Sax. utmæst, utmest; ut, out, and mest, most; that is, to the outermost point.]

1. Extreme; being at the furthest point or extremity; as, the utmost limit of North America; the utmost limits of the land; the utmost extent of human knowledge.
2. Being in the greatest or highest degree; as, the utmost assiduity; the utmost harmony; the utmost misery or happiness; the utmost peril. – Shak.