invert comes from Latin invertere 'to turn upside down, reverse', from in- 'in, upon' plus vertere 'to turn'. Morphologically, the prefixed shape matters: the initial element belongs to the recorded formation and helps explain the modern form's surface analysis. In present English, the verb sense is "to turn upside down or reverse in position or order", so the historical development ends in a clearly identifiable modern dictionary use. The same base also appears in related forms such as inverse and inversion, and in derivatives such as inverter, inverted, invertible, and invertibility. Its semantic neighborhood includes reverse, transpose, overturn, and upend, which helps locate the modern sense without adding a separate etymological claim. The named historical forms include Latin invertere and Latin vertere.