器
キ, うつわ
utensil, vessel, receptacle, implement, instrument, ability, container, tool, set
JLPT1 G4 S15 F525
An element# quadrupling 口 mouth/hole (→ variety of containers) + 犬 dog/beast → vessels filled with hunted game, or meat (compare 獻). The idea is to reduce the empty space in a *container/receptacle* by filling it (compare 吉) → *vessel*; *implement*. Also, *ability* (← have capacity/capability).
[Full Kanji Etymology List]