opsi-, ops- (Greek: late, later).opsanthosis: 
Late develepment of body characteristics as in a female.
 
opsidentia: 
Late development of teeth in a child.
 
opsigamy: 
Marriage at an advanced age.
 
opsigenes: 
1. Structures formed or  becoming functional long after birth.  
2. Late born, used especially of third molar teeth. opsimath: 
One who begins to learn late in life; one who acquires knowledge late in life; a late-learner.
 
opsimathy: 
1. Education late in life.  
2. Learning or study late in life; learning acquired late. opsimatria: 
The bearing of a child late in a woman's life.
 
opsipatria: 
The siring of a child by an elderly man.
 
opsiproligery, opsiproligerous: 
The ability to have offspring late in life.
 
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