グ, そな.える, つぶさ.に, とも
tool, utensil, means, possess, ingredients, counter for armor, suits, sets of furniture
JLPT3 G3 S8 F629
The relevant seal inscription form combines an abbreviated form of 鼎 tripod kettle/cauldron + an abbreviated form of 共# (act jointly in making an offering) → act together to *equip* a vessel for offering → *equipment*; *implement*; *tool*. Also, *means* and *ability* (← have the means/ability to equip). In 颶, 具 appears in a variant form.
[Full Kanji Etymology List]