वाहयेत् · क्रिया — should travel; the causative of √वह्, ‘should make the rest of the road be carried over’, and the optative is the request
भवान् · कर्ता — your honour; the polite ‘you’ the yakṣa has used to the cloud since 1.22, and why the verb stands in the third person
खिन्नविद्युत्कलत्रः · बहुव्रीहि agreeing with भवान् — your lightning-wife worn out, खिन्नं विद्युदेव कलत्रं यस्य
चिरविलसनात् · अपादान by case, हेतु by force — from flashing so long, चिरस्फुरणात्
नीत्वा · having passed — the absolutive, the thing done first; √नी, to lead, of a stretch of night led through
ताम् · agreeing with रात्रिम् — that; the pronoun opens the stanza, its noun arriving only in the second pāda
रात्रिम् · कर्म of नीत्वा — the night; an accusative of the stretch of time gone through, the answer to the नक्तम् of 1.39
भवनवलभौ · अधिकरण — on the roof-ridge of some house, गृहाच्छादनोपरिभागः, the top of a house's covering
कस्यांचित् · agreeing with भवनवलभौ — of some house or other; the indefinite, the same word that made the poem's first line indefinite
सुप्तपारावतायाम् · agreeing with भवनवलभौ — where the doves are asleep, सुप्ताः पारावताः यस्यां तस्याम्
दृष्टे · अधिकरण / locative absolute — the sun being seen, सूर्ये दृष्टे सति; the rising that ends the halt
सूर्ये · the other half of the locative absolute — the sun whose seeing ends the wait
अध्वशेषम् · कर्म — the rest of the road; from √शिष् with the affix अ, the road not measured from the start but continued
पुनः · again — the journey broken and to be taken up where it stopped, पुनरपि
अपि · — strengthens पुनर्, not merely again but again after all that
मन्दायन्ते · क्रिया — go slow; a verb made from an adjective by क्यष्, and the last pāda a general saying
अभ्युपेतार्थकृत्याः · कर्ता — those who have taken a friend's business on; कृत्या is √कृ with क्यप्, an action turned into a noun
सुहृदाम् · षष्ठी — of friends, मित्राणाम्; सुहृद्, ‘good-hearted’, the ordinary word for a friend
न · not — turns the last pāda into a saying; it stands after the verb, where a negative goes in a maxim
खलु · surely, as everyone knows — हि, the particle of a reason given, the mark of a general truth