恵
ケイ, エ, めぐ.む, めぐ.み, あや, け, さと, さとし, しげ, へい, み, やす
favor, blessing, grace, kindness
JLPT1 G7 S10 F925
A variant form of 褱 as described in 懷 (fall and be absorbed), indicating a *benefaction* from above, whether actually (rain for crops) or figuratively (a *blessing*) → *bless*; *have mercy on*; *benevolence*; *kindness*; *warmth* → *bestow*; *favor*. *Calm* is an extended meaning, while *smart* is a borrowed meaning. For "benefaction," compare 恤.
[Full Kanji Etymology List]