The Greek that is typically translated as “gentleness” in English is translated in Suki as gitusaena inae or “not-snatching way.” (Source L. and E. Twyman in The Bible Translator 1953, p. 91ff. )

In Tibetan it is translated as sems dul ba (སེམས་​དུལ་​བ།), lit. “mind + tame.” (Source: gSungrab website )

See also meek / meekness, spirit of gentleness and gentle and quiet spirit.