A modern spelling of Augustine/August traditions, from Latin *Augustus* meaning "venerable" or "great."
Agustya is a variant spelling of Agastya (also Agasthya), one of the most celebrated sages of Hindu mythology and a figure of extraordinary cultural significance across South and Southeast Asia. In the Rigveda — among the oldest texts in any Indo-European language — Agastya appears as one of the Saptarishis, the seven great seers to whom the sacred hymns were revealed. His name is derived from the Sanskrit meaning "one who causes the mountain to move" or possibly "one who can be thrown" (connected to the legend of his miraculous birth in a jar), though scholars continue to debate the precise etymology.
The legends surrounding Agastya are among the most vivid in Sanskrit literature. He is said to have drunk the entire ocean in a single sip to help the gods defeat hidden demons. He is credited with bringing the Sanskrit language and Vedic civilization to southern India, making him a foundational cultural hero of Tamil Nadu, Kerala, and the Deccan.
The star Canopus — the second brightest in the night sky — is called Agastya in Indian astronomy, and its heliacal rising historically marked the beginning of the sailing season and the end of monsoons. In Southeast Asia, Agastya is venerated in Khmer, Javanese, and Balinese Hindu traditions as the great teacher who carried sacred knowledge across the seas. As a given name, Agustya (with the u spelling reflecting Javanese and Balinese usage) carries enormous reverence. To give a child this name is to invoke the patron of travelers, teachers, and those who carry knowledge across distances — a name of remarkable depth for a remarkable child.