February is using a special suffix, "-phan". Both "-khom" and "-yon" means "come" or "arrival". Since our month names are basically a Zodiac in Hindu astrology

February is using a special suffix, "-phan". Both "-khom" and "-yon" means "come" or "arrival". Since our month names are basically a Zodiac in Hindu astrology, "Mokkarakhom" could be translated to "the arrival of Capricorn" (Mokkara/Makara) or April "Mesayon" is "the arrival of Aries" (Mesa).