The following short encyclopedia article just came out:
van Oostendorp, M. (2026). The CELEX Lexical Database: History, structure, applications, and accessibility. In H. Nesi & P. Milin (Eds.), International encyclopedia of language and linguistics (3rd ed., pp. 386–390). Elsevier. https://doi.org/10.1016/B978-0-323-95504-1.01259-X
Abstract:
The CELEX Lexical Database is a comprehensive multilingual resource developed in the Netherlands during the late 1980s, providing richly annotated lexicons for English, Dutch, and German. This paper outlines its development history, database structure, and applications in psycholinguistics, computational linguistics, and speech technology. Despite newer resources emerging, CELEX remains valuable for researchers requiring detailed linguistic annotations including orthography, phonology, morphology, syntax, and frequency information. Maintained by the Max Planck Institute for Psycholinguistics, it continues to bridge theoretical, psychological, and computational approaches to language research.
You can see a draft version here.