angular

The word 'angular' is a direct descendant of the Latin adjective angularis, which itself is derived from the noun angulus meaning "corner" or "angle." The Latin angulus is traced back to the Proto-Indo-European root ank-, meaning "to bend," a root which also gave rise to the Greek ankylos (crooked) and the Old English angel (fishhook), illustrating a shared concept of curvature or sharp bend. The suffix '-ar' (from Latin -aris) is a common adjectival ending, transforming the noun into a descriptor. Thus, the literal "pertaining to an angle" evolved to describe not only geometric shapes but also physical sharpness in features and measurements related to angles.

Structure: angul (angle) + ar (adjective-forming suffix) 'angul' originates from Latin angulus, meaning "corner, angle." The suffix '-ar' is a Latin-derived adjectival suffix meaning "pertaining to, of the nature of."