accusative singular masculine of añjali (surface form tenañjaliṁ is a contraction of tena + añjaliṁ)
Analysis. tena (instrumental of ta, 'that') + añjaliṁ (accusative of añjali); the phrase means 'with that salutation' or 'with reverence', commonly used in the formula tenañjaliṁ paṇāmetvā 'having saluted with joined palms'
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
Lite mode — plain HTML for e-readers and old browsers. Full version