1) Lingually 2) With respect to language 1) Lingually 
• (adv.) In a linguistic manner; from the point of view of a linguist.
Lin·guis'tic·al·ly adverb In a linguistic manner; from the point of view of a linguist. Tylor. 
[adv] - with respect to the science of linguistics 2. [adv] - with respect to language
linguistic, linguistical, linguistically 1. Of or pertaining to language or the knowledge or study of languages. 2. Relating to linguistics, or to the affinities of languages.
lingually adverb with respect to language; `linguistically impaired children`; `a lingually diverse population`