tgullootk [tgu/l/*lootk]
Stem with modifying proclitic composed of: tgu=  around, *llootk  
intransitive verb. square
Ḵ'ap sm tgullootga sixbiist. The box he made is really square.
missing: ../jpgs/8-print-artist-drawings/SQUARES.jpg
Image from Print Artist Platinum software, version 23, Bonus Graphics CD.
missing: ../jpgs/8-print-artist-drawings/SQUARE 05.jpg
Image from Print Artist Platinum software, version 23, Bonus Graphics CD.

Related entries: Cross Ref: k'wilootk  triangular/triangle | Cross Ref: txa̱sllootk  rectangular/rectangle

Source: Draft Dictionary entry.