Corpus of Electronic Texts Edition
Cáin Lánamna (Author: [unknown])

section 23

If he gives bridewealth to acquire another woman, even from his own private property, that bridewealth is forfeit to his cétmuinter if she carries out her marital obligations. Every secondary wife12 who comes 'over the head' of a cétmuinter is liable to penalty: she pays the honour-price of the cétmuinter.