sap

noun
1
the liquid in a plant or tree that carries food to all its parts
شیره, شیرهٔ گیاهی, مایع درختی
2
a stupid person that you can easily trick, or treat unfairly
آدم ساده‌لوح, احمق, ساده‌لوح, گول‌خور, فریب‌خور
The poor sap never knew what was going on behind his back.
verb
1
to make something/somebody weaker; to destroy something gradually
تضعیف کردن, ضعیف کردن, فرسودن, تحلیل بردن