Farthest
Farthest is the superlative form of the English adjective and adverb far, indicating the greatest distance from a reference point. It appears as an adjective: “the farthest town on the map,” and as an adverb: “they traveled the farthest they could.”
Usage notes: Traditionally, farther is the comparative form used for physical distances (“the farther shore”), while
Etymology: Farthest derives from Old English feorr, with the standard English suffixes -er and -est forming