Frock coat

A Dictionary of Men's Wear · 1908 · p. 10
—properly a c. either single or double-breasted, constructed of parts known as forepart (which in double-breasted coats is divided at the front line of the chest), side body, divided back part and skirt, of each 2, the back parts continuing down to the bottom, joining with the skirt parts and forming the plaits behind, in which pockets are sometimes placed; when the skirts in front are cutaway from a point near the waistline the word cutaway is prefixt to distinguish from the more formal garment, “Prince Albert”, as the double-breasted f. is commonly known; the “cutaway frock” (of which the [English] walking c. is a variation) is almost invariably single-breasted and consequently not made with divided foreparts.
Readham'da tam maddeyi gor →