adjective/pɛʁ.kly/
crippled; paralysed
“J'étais demeuré à la fenêtre, immobile, perclus, paralysé.” — I was still at the window, motionless, frozen, paralysed.
Borrowed from Medieval Latin perclūsus (“obstructed”), past participle of perclūdō (“to seal shut”) (infinitive perclūdere).