στην

Etymology
Ultimate origin is from

Pronunciation
unstressed; pronounced together with the word which follows
 * see for rules of pronunciation in liaison

Contraction

 * 1) with final [n] ''before vowels and consonants ⟨ κ π τ ψ ξ γκ μπ ντ ⟩ [k c p t ks ps g ɟ b d]