The phrase “melancholic” is pronounced as “mel-un-kol-ik”. The stress is on the third syllable. It’s an adjective which means “unhappy” or “depressed”.
The phrase “melancholic” comes from the Greek phrase “melas”, which suggests “black”, and “chole”, which suggests “bile”. In historical Greek drugs, it was believed that an extra of black bile brought about disappointment and melancholy. This perception persevered till the nineteenth century.