महान्तः क्रमाः पादविक्षेपा अस्येति महाक्रमः, 'शं नो विष्णुरुरुक्रमः' इति श्रुतेः ।महन् जगदुत्पत्त्यादि कर्मास्येति महाकर्मा ।यदीयेन तेजसा तेजस्विनो भास्करायः तत्तेजो महदस्येति महातेजाः, 'येन सूर्यस्तपति तेजसेद्ध: ' इति श्रुतेः, 'यदादित्यगतं तेज: ' इति भगवद्वचनाच ।क्रौर्यशौर्यादिभिर्धर्मैमहद्भिः समलंकृत इति वा महातेजाः ।महांश्चासावुरगश्चेति महोरगः, 'सर्पाणामस्मि वासुकिः' इति भगवद्वचनात् ।महांश्चासौ ऋतुश्चेति महाक्रतुः, `यथाश्वमेधः क्रतुराट्' इति मनुवचनात् ; सोऽपि स एवेति स्तुतिः ।महांश्चासौ यज्वा चेति लोकसंग्रहार्थं यज्ञान् निर्वर्तयन् महायज्वा ।महांश्चासौ यज्ञश्चेति महायज्ञः, 'यज्ञानां जपयज्ञोऽस्मि' इति भगवद्वचनात् ।महच्च तद्धविश्वेति ब्रह्म
In plain words
He is Mahākrama because His strides are vast, as scripture says: 'May Vishnu of wide strides be auspicious to us.' He is Mahākarmā because His cosmic acts, starting with creation, are immense. He is Mahātejāḥ because His radiance empowers all luminaries, as the Veda states: 'Kindled by His light, the sun shines,' and the Gita confirms: 'The splendor that dwells in the sun is Mine.' Alternatively, He is Mahātejāḥ because He is adorned with majestic qualities like supreme valor. He is Mahoraga because He is the great serpent, as the Lord declared: 'Among serpents, I am Vasuki.' He is Mahākratu because He is the great Vedic sacrifice, just as Manu calls the horse-sacrifice the king of sacrifices. He is Mahāyajvā because He performs grand sacrifices to guide humanity. He is Mahāyajña because He is the supreme sacrifice, as the Lord said: 'Among sacrifices, I am the sacrifice of silent repetition.' And that sacred oblation is supreme...
Close to the Sanskrit
Mahākrama because His foot-movements, the strides, are great, from the scriptural passage 'May Vishnu of wide strides be auspicious to us.' Mahākarmā because His action, beginning with world-creation, is great. Mahātejāḥ because that splendor of His, by which luminous bodies shine, is great, from the scriptural text 'By whose splendor kindled the sun shines,' and from the Lord's utterance 'The splendor that is in the sun.' Or Mahātejāḥ because He is well adorned with great qualities like fierceness and valor. Mahoraga because He is both great and a serpent, from the Lord's utterance 'Among serpents I am Vasuki.' Mahākratu because He is both great and a sacrifice, from Manu's statement 'As the horse-sacrifice is the king of sacrifices'; that same one is also praised. Mahāyajvā because He is both great and a performer of sacrifices, executing sacrifices for world-protection. Mahāyajña because He is both great and a sacrifice, from the Lord's utterance 'Among sacrifices I am the sacrifice of silent repetition.' And that oblation is great, Brahman...