In publications of 1647 and 1654, Marcus van Boxhorn first described a rigid methodology for historical linguistic comparisons and proposed the existence of an Indo-European proto-language ( which he called " Scythian " ) unrelated to Hebrew, but ancestral to Germanic, Greek, Romance, Persian, Sanskrit, Slavic, Celtic and Baltic languages.
12.
Sasi has rather than the of ?Hoan and N ! aqriaxe, though Sasi is sometimes slightly affricated . ( The same pattern holds for Sasi contour clicks with . ) A contrastive was reported by Gruber ( 1975 ) from a word or two in ?Hoan dialect, but could not be confirmed in N ! aqriaxe, and cross-linguistic comparison gives reason to believe that and are the same consonant.