The above affixes and kha and ṭhiñ may also be elided after a dvigu samāsa (Numeral Determinative Compound) ending in varṣā,
The affix ख as well as ठञ् come in the five fold senses 5.1.79, 5.1.80, after the word वर्षा forming a Dvigu; and these two affixes may also be elided optionally. Thus we have three forms; द्विवर्षीणो, द्विवार्षिकी or द्विवर्षो व्याधिः 'a disease that lasted two years'. Compare 7.3.16; but when the sense is that of भावी, the form will be द्वैवर्षिकः ॥,