be so kind as to ... Definition

kind²
adj kinder, kindest

1. Friendly, helpful, well-meaning, generous, benevolent or considerate.

Thesaurus: tender, considerate, affectionate, altruistic, amicable, benign, loving, pleasant, gracious, motherly, soft-hearted, compassionate, genial, warm, sympathetic, understanding; Antonym: callous, crass.
2. Warm; cordial.

Example: kind regards

Derivative: kindness
noun

The quality of being friendly, helpful or considerate
Thesaurus: consideration, tenderness, sweetness, sympathy, courtesy, cordiality, bonhomie, gentilesse, mildness, affection, forbearance, goodness, charity, altruism, philanthropy, succour, grace, clemency, understanding; benefaction, hospitality, munificence ; Antonym: cruelty, inhumanity.

Idiom: be so kind as to ... (be kind enough to ...)

A polite formula of request for someone to do a specified thing.

Etymology: Anglo-Saxon gecynde in obsolete sense ‘natural'.