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from http://www.m-w.com

One entry found for corolla.

Main Entry: co·rol·la
Pronunciation: k&-‘rä-l&, -‘rO-
Function: noun
Etymology: New Latin, from Latin, diminutive of corona
Date: circa 1753
: the part of a flower that consists of the separate or fused petals and constitutes the inner whorl of the perianth
– co·rol·late /k&-‘rä-l&t; ‘kor-&-“lAt, ‘kär-/ adjective

and….
One entry found for corollary.

Main Entry: cor·ol·lary
Pronunciation: ‘kor-&-“ler-E, ‘kär-, British k&-‘rä-l&-rE
Function: noun
Inflected Form(s): plural -lar·ies
Etymology: Middle English corolarie, from Late Latin corollarium, from Latin, money paid for a garland, gratuity, from corolla
Date: 14th century
1 : a proposition inferred immediately from a proved proposition with little or no additional proof
2 a : something that naturally follows : RESULT b : something that incidentally or naturally accompanies or parallels
– corollary adjective

so they are not related! hehee