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Webster 1913 Edition
Occasive
Oc-ca′sive
,Adj.
 [L. 
occasivus
, fr. occasus 
a going down, setting of the heavenly bodies, fr. occidere 
to fall or down. See Occasion
.] Of or pertaining to the setting sun; falling; descending; western. 
Webster 1828 Edition
Occasive
OCCA'SIVE
,Adj.
  Amplitude is ortive or occasive.
Definition 2025
occasive
occasive
English
Adjective
occasive (not comparable)
- Of or pertaining to the setting sun; falling, descending; western.