sacrifice place for military purposes
禡 centers on a ritual sacrifice performed for military purposes, specifically a ceremony to bless a campaign or troops before battle.
禡 combines 示 (altar, religious ceremony) with 馬 (horse), likely reflecting an ancient military sacrifice involving horses or a ceremony held before mounting a campaign.
Picture an altar (示) with a horse (馬) beside it, where soldiers offer a sacrifice to bless their military expedition.
For バ, imagine a warhorse braying "baa!" at the altar as the sacrifice begins: baa -> バ.