imperfect 1st person plural + eva (emphatic particle)
Analysis. ahuvamheva = ahuvamha (imperfect 1st person plural of ahuvā) + eva (indeed, just so); the form ahuvamha itself results from sandhi: ahuvam + ha, where ahuvam is the imperfect stem and ha is the enclitic particle of emphasis or past-tense marking fused to the personal ending.
Etymology. ahuvā is the imperfect of bhavati (to be, become), with a being an optional augment prefix (ā-: toward, up to; here marking past time). bhavati roots in Indo-European *bʰeuH- (become, be), cognate with English be, Latin fīō, Sanskrit bhavati. The stem ahu- shows the zero-grade of the root before the imperfect suffix -a-.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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