English

Proper noun

Indo-Germanic

1. (dated, linguistics) Indo-European (major language family)
2. (dated, linguistics) Proto-Indo-European (hypothetical language)

Adjective

Indo-Germanic ‎(not comparable)

1. (dated, linguistics) Indo-European

References

1. 1 2 Winfred P. Lehmann, Historical Linguistics: An Introduction (2013, ISBN 1136902163), page 67: "Since the Germanic family is located farthest to the north and west, many scholars, especially in Germany, label the family Indo-Germanic by the designation proposed in 1810 by Conrad Malte-Brun."
2. ↑ The Oxford Introduction to Proto-Indo-European (2006, ISBN 0191058122)