The Proto-Semitic word gabʿ, gibʿ
Word gabʿ, gibʿ
Meaning hill, height
Synonyms tall, till

Comments
Kaye, Alan S. "Christopher Ehret. Reconstructing Proto-Afroasiatic (Proto-Afrasian): Vowels, Tone, Consonants, and Vocabulary", University of California 1995

Other words that might be of interest
gbl ‘mountain’, ʾadam ‘earth’, ʾarṣ̂ ‘earth’, ḥaḳl ‘field’, ʿiṣ̂ ‘tree’