Word mod s -> ss     
May be 2 words combined (neces+arium) If not obvious, probably incorrect
necessari.um         N      2 2 NOM S N                 
necessari.um         N      2 2 VOC S N                 
necessari.um         N      2 2 ACC S N                 
necessarium, necessarii  N (2nd) N   [XXXEO]    uncommon
necessities (pl.), what is needed; necessities of life;
necessari.um         N      2 4 ACC S M                 
necessarius, necessari(i)  N (2nd) M   [XXXCO]  
relative; connection, one closely connected by friendship/family/obligation;
necessari.um         ADJ    1 1 NOM S N POS             
necessari.um         ADJ    1 1 VOC S N POS             
necessari.um         ADJ    1 1 ACC S M POS             
necessari.um         ADJ    1 1 ACC S N POS             
necessarius, necessaria, necessarium  ADJ   [XXXAO]  
necessary/needed/essential/indispensable; vital/private (body part); close tied
inevitable, fateful; urgent/critical; unavoidable/compulsory; natural (death);
Two words            
nec.es               V      1 1 PRES ACTIVE  SUB 2 S    
neco, necare, necavi, necatus  V (1st) TRANS   [XXXBO]  
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Unexpected exception in PAUSE
neco, necare, necui, nectus  V (1st) TRANS   [BXXFO]    Early  veryrare
kill/murder; put to death; suppress, destroy; kill (plant); quench/drown (fire)
nec.es               N      3 1 NOM P F                 
nec.es               N      3 1 VOC P F                 
nec.es               N      3 1 ACC P F                 
nex, necis  N (3rd) F   [XXXBX]  
death; murder;
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