Definition from Wiktionary, the free dictionary
da + -syn
- third-person singular masculine emphatic of da
- to him/it
By vie dasyn dy daink ee tra ren ee.
― It was a good thing for him that she came when she did.
Ta reamys ayns shen dasyn as dhyts.
― There is room there for you and him.
Va'n screeuyn currit dasyn hene.
― The letter was delivered to him in person.
Yn dooinney dasyn hug mee yn ooyl.
― The man to whom I gave the apple.