Late 15th century. From classical Latin obstant-, obstāns, present participle of obstāre to stand in the way of, obstruct, resist, withstand from ob- + stāre to stand; compare -ant.
Definition of obstant in US English:
obstant
adjectiveˈɒbst(ə)nt
Scottish rare
Opposing, resisting, adverse.
Origin
Late 15th century. From classical Latin obstant-, obstāns, present participle of obstāre to stand in the way of, obstruct, resist, withstand from ob- + stāre to stand; compare -ant.