variante(s): ostender, ostendir

v.

'montrer, exposer, expliquer'

D: ArchBPyr ⊂ LespyR 2:111b (‑er); ArchBPyr ⊂ LespyR 2:111b (‑ir)

FEW 7:435b [ᴏѕᴛᴇɴᴅᴇʀᴇ].