ASL has been demonstrated to influence the vocabulary and grammar of MSL; for example, because the original BANZSL two-handed manual alphabet is no longer used in the Maritimes and has been replaced by the one-handed American manual alphabet, lexicalized signs are developed from one-handed fingerspelling.
The adoption of ASL has had an impact on the linguistic structure of Sign Language (MSL), as seen in the shift from a traditional two-handed manual alphabet to a more streamlined one-handed system. This change has given rise to novel lexicalized signs that incorporate finger spelling techniques.