Two words            
May be 2 words combined (arces+seratis) If not obvious, probably incorrect
arc.es               V      2 1 PRES ACTIVE  IND 2 S    
arceo, arcere, arcui, -  V (2nd) TRANS   [XXXAO]  
ward/keep off/away; keep close, confine; prevent, hinder; protect; separate;
arc.es               V      3 1 FUT  ACTIVE  IND 2 S    
arco, arcere, arcui, -  V (3rd)   [XXXCW]  
keep away, protect;
arc.es               N      3 3 NOM P F                 
arc.es               N      3 3 VOC P F                 
arc.es               N      3 3 ACC P F                 
arcs, arcis  N (3rd) F   [XXXCO]  
citadel, stronghold; height; the Capitoline hill Rome; defense, refuge;
arx, arcis  N (3rd) F   [XWXAO]  
citadel, stronghold, city; height, hilltop; Capitoline hill; defense, refuge;
ser.atis             V      3 1 PRES ACTIVE  SUB 2 P    
sero, serere, serui, sertus  V (3rd)   [XXXDX]    lesser
wreath; join, entwine, interweave, bind together; compose; contrive;
sero, serere, sevi, satus  V (3rd)   [XXXDX]    lesser
sow, plant; strew, scatter, spread; cultivate; beget, bring forth;
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