उपसर्जनम् [upasarjanam] 1 Pouring on.
A misfortune, calamity (as an eclipse), portent; ज्योतिषां चोपसर्जने (अनध्यायान्)
[Ms.4.15.] Leaving.
Eclipsing.
Any person or thing subordinate to another, a substitute.
(In gram.) A word which either by composition or derivation loses its original independent character, while it also determines the sense of another word (opp. प्रधान);e. g. in पाणिनीयः a pupil of पाणिनि, पाणिनि becomes उपसर्जन; or in राजपुरुषः, राजन् is उपसर्जन, having lost its independent character;
[P.I.2.43,48,57;] II.2.3; IV.1.14,54; VI.3.82; आचार्योपसर्जनश्चान्तेवासी.
A kind of war-manoeuvre; तथा प्राग्भवनं चापसरणं तूपसर्जनम्
[Śuka.4.115.]