yüzümde
Yüzümde is a Turkish locative phrase meaning “on my face.” It is formed from the noun yüz, meaning face, with the first-person possessive suffix -üm to produce yüzüm, “my face.” The locative suffix -de attaches to indicate a position on a surface, yielding yüzümde, “on my face.” The form of the locative suffix follows Turkish vowel harmony, so -de is used after stems ending in a front vowel such as ü; thus yüzümde is the correct spelling.
The phrase is used to denote a physical location on the face, often describing a feature, condition,
Morphologically, yüzümde can be analyzed as yüz (face) + -üm (1st person singular possessive) → yüzüm (my face)
See also: yüz (face), sivilce (pimple), makyaj (makeup), Turkish morphology.