'Et' and 'ais' have the same sound. It's just 'biais' as in biased - but not the same sense as prejudiced ! At an angle. Reverso gives lots of translations including 'skew' or 'askew'. Also, as you can imagine, the verb biaiser - to bias, skew or distort - lends itself to wordplay. It's used in sewing - something to do with hemming, I believe. But I'm not a seamstress or seamster plutôt. See the song 'La Biaiseuse' by Marie-Paule Belle... that dates me ! @+ Andrew