In plain words
and whatever disrespect I showed in jest, while playing, resting, sitting, eating, alone with You or before others—Achyuta, I ask forgiveness of You, immeasurable One.
Word for word
and whatever [way] You were slighted for a jest, at play, in bed, at a seat, at meals, alone or, O Acyuta, also in [others'] presence: for that I ask You, the immeasurable, to forgive.
यच्चावहासार्थमसत्कृतोऽसिविहारशय्यासनभोजनेषुएकोऽथवाऽप्यच्युत तत् समक्षंतत् क्षामये त्वामहमप्रमेयम्
Other commentaries
The commentators
▸Bhagavadgītābhāṣyam· bhāṣya
यच्च अवहासार्थं परिहासप्रयोजनाय असत्कृतः परिभूतः असि भवसि ; क्व ? विहारशय्यासनभोजनेषु, विहरणं विहारः पादव्यायामः, शयनं शय्या, आसनम् आस्थायिका, भोजनम् अदनम् , इति एतेषु विहारशय्यासनभोजनेषु, एकः परोक्षः सन् असत्कृतः असि परिभूतः असि ; अथवापि हे अच्युत, तत् समक्षम् , तच्छब्दः क्रियाविशेषणार्थः, प्रत्यक्षं वा असत्कृतः असि तत् सर्वम् अपराधजातं क्षामये क्षमां कारये त्वाम् अहम् अप्रमेयं प्रमाणातीतम् ॥ ४२ ॥
In plain words
And however I mocked you — every time I disrespected you, treated you carelessly, just for the sake of a joke — Śaṅkara asks: where did this happen? At play, in bed, at the table, sitting together — the ordinary places of a friendship. Whether I did it when we were alone, with no one else to see, or right out in the open, in front of others — either way, for all of it, that whole heap of wrongs, I beg you: forgive me. Grant me your pardon — you, whom I now know to be beyond measuring, beyond anything my mind could ever fully grasp.
Close to the Sanskrit
And whatever, for the sake of ridicule, for the purpose of jesting, you have been disrespected, treated with contempt — where? In sport, bed, seat, and food: viharaṇa means vihāra, exercise of the feet; śayana means the bed; āsana means the seat; bhojana means eating. Thus, in these — sport, bed, seat, and food — if, being alone, unseen, you were disrespected, treated with contempt; or else, O Acyuta, that [being done] openly — the word 'tat' has the sense of a qualifier of the action — or visibly, you were disrespected: for all of that, the whole mass of offenses, I beg you — immeasurable, beyond the reach of any means of knowledge — to forgive, I entreat you to pardon.