The words POÈME, POÈTe and POÉSIE, although closely related by both form and meaning, are unanalyzable within a concatenative model of morphology or in terms of rules. If we define constructed words, synchronically, as the intersection of a derivational series and of a derivational family, they are nonetheless constructed words. They belong on the one hand to the same derivational network of the ‹activity› type, and on the other hand to derivational series characterized by the suffix groups -Vme, -Vte and -Vs(i)e. Whether they are borrowed from Ancient Greek or have been constructed in modern languages, entire sectors of the lexicon thus deserve to be analyzed by constructional morphology, insofar the compositionality of the lexemes in question remains, at least partially, perceptible.