in botany, "having a corolla; like a corolla," 1825, from corolla + -ate (1).
Entries linking to corollate
corolla n.
1670s, "a small crown," from Latin corolla "a garland, a little crown," diminutive of corona "crown, garland" (see crown (n.)). Botanical use is from 1753. Related: Corollaceous.
-ate 1
word-forming element used in forming nouns from Latin words ending in -atus, -atum (such as estate, primate, senate). Those that came to English via French often arrived with -at, but an -e was added after c. 1400 to indicate the long vowel. The suffix also can mark adjectives formed from Latin past participles in -atus, -ata (such as desolate, moderate, separate); again, they often were adopted in Middle English as -at, with an -e appended after c. 1400.