sijn (Middle Dutch) comes from Middle Dutch wēsen, from Old Dutch wesan, from Proto-West Germanic wesan, from Proto-Germanic *wesaną, from Proto-Indo-European wes- — to dress, clothe.
sijn (Middle Dutch): alternative infinitive of wesen; his; its
Definitions
alternative infinitive of wesen; his; its
Ancestry of “sijn”, step by step
sijn traces back through two separate lines of ancestry.