Harappan
glossography
Kassite
Umbrian language
Cassite language
Cassite
Kassite language
Umbrian
PIE
Proto-Indo European
Proto-Indo European language
Paelignian
Paeonian
Old Slavonic
dead language
mother tongue
antiquary
antiquitous
Lycian language
Raetic
anciency
Baekje
Lycian
Kaska
paleobiolinguistics
rusty
Pannonian
Qatabanian
priscan
Thracian
hoary
Thracian language
Teutonic
Germanic
Hadramitic
classical
derivation
etymologizing
Kiliwa
deriving
Shuswap
East Germanic
Catawba
anciently
Querandí
East Germanic language
Phoenician language
Aka-Bea
prehistorically
Aka-Kora