[exersar]
variante(s): exerçar
v.
'mettre en usage [en parlant d'une loi]'
D: 1300 Auch ⊂ HistGascM 54,27 (‑ç‑)
∅ FEW 3:292a [ᴇxᴇʀᴄᴇʀᴇ].
→ exercir