Strong's G5068 · Greek

τετράγωνος

tetragonos · tet-rag'-o-nos

from 5064 and 1137; four-cornered, i.e. square

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 1 τετράγωνος , -ον ( τετρα- , v. supr., + γωνία ), [in LXX for רָבוּעַ and cogn. forms ;] square : Re 21:16 (Hdt., Plat., al.).† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain