Plural of glottology; multiple systems or schools of thought regarding the study of language origins and linguistic relationships.
From 'glottology' (the study of language origins) with the standard English plural '-ies.' The plural form allows discussion of different approaches and traditions within the field.
Making glottology plural suggests there are competing theories about where languages come from—which is absolutely true, since linguists still debate whether all human languages share a common ancestor.
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