dirgahayu (Malay) comes from Sanskrit दिर्घायु, from Sanskrit आयु, from Proto-Indo-Aryan Hā́yu, from Proto-Indo-Iranian Hā́yu, from Proto-Indo-European h₂óyu, from Proto-Indo-European h₂ey- — vital force, life, age, eternity; day, morning.
dirgahayu (Malay): long live