A spiritual seeker wrote, I read in many books the saying تارک الورد ملعون (one who abandons his daily wird is cursed).  What exactly does it mean?

Hakim al Umma Maulana Ashraf Ali Thanvi (Allah have mercy on him) replied, 

‘First of all sayings like this are not an evidence without an explicit reference. 

Even if it is considered to be a testament then ‘cursed’ (here) means deprivation from the special blessings that is associated with (the recitation of) this wird. 

In addition the wisdom of wording it so (dramatic) is to state the repugnance of abandoning the daily routine wird without a genuine excuse. This practice (of abandonment of established worship) being abominable is mentioned in sahih Prophetic saying

یا عبداللہ لا تکن مثل فلان کان یصلی بالیل ثم ترکہ

O Abdullah! Do not be like XYZ who use to pray at night and then abandoned it. ‘

Tarbiyet us Salik, volume3, page 134