Iecki

Iecki is a term used in Polish language and onomastics that can refer to a surname as well as to an adjectival suffix. As a suffix, the sequence -iecki is an adjectival ending that forms words indicating origin or relation from a noun, especially from place names. It is part of a broader class of Polish endings such as -ski and -cki that signal toponymic or ethnographic connections. In practice, many toponymic adjectives and surnames end with -iecki, -ecki, or -icki, reflecting historical patterns of naming.

As a surname, Iecki is a Polish family name. Surnames ending in -iecki are typically of toponymic origin, often tracing ancestry to a town, village, or region. In Polish, such surnames have gendered and plural forms: the masculine form is Iecki, the feminine form is Iecka, and the plural form is Ieccy. When carried by speakers in stretches of diaspora, spellings may vary or be adapted to fit other languages, but the root remains recognizably Polish.

The suffix's use shows regional and historical variation and does not denote a single, specific concept beyond its linguistic and toponymic functions. It is a productive ending in Polish that appears in many proper names across Poland and among Polish communities worldwide, contributing to the formation of adjectives and surnames that convey origin or association with a place.