downright

the word 'downright' originated in middle english as a compound of the two common english words 'down' and 'right'. its initial, literal sense was 'straight down' or 'directly downwards', describing a perpendicular or vertical direction. over time, this concrete sense of directness evolved into a figurative intensifier, first for actions performed with direct, unhesitating force, and later as a general emphasizer for qualities, particularly negative ones. the logic of the word's evolution lies in the metaphorical extension of physical directness ('straight down') to abstract completeness and thoroughness, capturing the sense of something being absolute and without reservation.

Structure: down (direction) + right (correct/straight) down (from old english 'dūn', meaning 'hill' or 'downward', here used as an intensifier); right (from old english 'riht', meaning 'straight, correct, direct', here used as an intensifier)