Questions & Answers about Η συνεργάτιδα, της οποίας το email διάβασα χτες, ήταν πολύ πρόθυμη να με βοηθήσει.
Συνεργάτιδα is a feminine noun meaning something like female coworker, female colleague, female associate, or collaborator, depending on context.
A few useful comparisons:
- συνεργάτιδα = specifically feminine
- συνεργάτης = masculine
- συνάδελφος = a very common word for colleague, often used for any gender
So here the sentence explicitly refers to a woman.
της οποίας means whose.
More literally, it is the genitive feminine singular form of the relative pronoun family:
- ο οποίος
- η οποία
- το οποίο
In this sentence, της οποίας το email means whose email.