Charitably, in the older wording of Romans 14:15, means in love. The expression describes acting toward another Christian with loving concern rather than causing spiritual harm.
Definition
Charitably is an older English expression meaning in love. It describes conduct governed by loving concern for another person.
Biblical Usage
Romans 14:15 uses the expression in the sense of acting in love, rather than causing spiritual harm to another Christian through one’s conduct.
Historical Background
The Revised Version regularly substitutes “love” for the older biblical use of “charity,” including this expression.
Historical Bible Dictionaries
International Standard Bible Encyclopedia (ISBE)
<p>char'-i-ta-bli (kata agapen): The Revised Version (British and American), which substitutes "love" for "charity" regularly, removing the latter word from the vocabulary of Scripture, makes a like change in Ro 14:15, the only occurrence of "charitably" in the King James Version; the Revised Version (British and American) "in love."</p><p>See CHARITY.</p>