In plain words
With many mouths and eyes, many wondrous visions, many divine ornaments, and many divine weapons raised,
Word for word
[A form] of many mouths and eyes, of many wondrous sights, of many divine ornaments, with many divine weapons raised,
अनेकवक्त्रनयनमनेकाद्भुतदर्शनम्अनेकदिव्याभरणं दिव्यानेकोद्यतायुधम्
Other commentaries
The commentators
▸Bhagavadgītābhāṣyam· bhāṣya
अनेकवक्त्रनयनम् अनेकानि वक्त्राणि नयनानि च यस्मिन् रूपे तत् अनेकवक्त्रनयनम् , अनेकाद्भुतदर्शनम् अनेकानि अद्भुतानि विस्मापकानि दर्शनानि यस्मिन् रूपे तत् अनेकाद्भुतदर्शनं रूपम् , तथा अनेकदिव्याभरणम् अनेकानि दिव्यानि आभरणानि यस्मिन् तत् अनेकदिव्याभरणम् , तथा दिव्यानेकोद्यतायुधं दिव्यानि अनेकानि अस्यादीनि उद्यतानि आयुधानि यस्मिन् तत् दिव्यानेकोद्यतायुधम् , ‘दर्शयामास’ इति पूर्वेण सम्बन्धः ॥ १० ॥
In plain words
Many faces, many eyes — wherever a form carries that many faces and eyes, that is what makes it 'many-faced, many-eyed.' Many wonders too astonishing to take in at once — that is a form 'filled with countless marvels to see.' It is decked, besides, in many divine ornaments, and it bears, raised and ready, many divine weapons — swords and more. All of this reaches back to one earlier word: this is the form that he showed.
Close to the Sanskrit
Many-faced-and-eyed — that form in which there are many faces and eyes, that is many-faced-and-eyed; many-wondrous-sighted — that form in which there are many wondrous, astonishing sights, that is the many-wondrous-sighted form; likewise many-divine-ornamented — that in which there are many divine ornaments is many-divine-ornamented; likewise divine-many-upraised-weaponed — that in which there are many divine weapons, swords and so on, upraised, is divine-many-upraised-weaponed. The construction is with the earlier word 'showed'.