Age of acquisition of a word and familiarity are important factors for the lexical processing, in production as in perception. To help developing research on the mechanisms underlying the lexical processing in French, a lexical data base was built for a corpus of 1225 monosyllabic and disyllabic French words. This article describes the method used to collect the data, the rough information obtained with the survey, explains the method that was used to process the rough information, describes the content of the lexical data base CHACQFAM, obtained after the rough data has been processed, and describes the validation procedure of its content. CHACQFAM is made freely available to researchers in an electronic format, from the website 'http://psycholinguistique.unige.ch/'. (PsycINFO Database Record (c) 2016 APA, all rights reserved)