συνᾶραι [3 verses](verb aor inf act) "Take" is synairo, which means "take up together," "gather in a harvest," "collected," "take part in a thing," "help in bearing or undertaking," "raise or use in helping," "help," "assist," and "annul jointly with another."  -- (CW) "Take" is from a verb that means "gather in a harvest," "raise or use in helping," and "take part in a thing." It literally means "together raise" or "together take up." The sense seems to be captured by the word "engage in" in English.  This word is only used by Jesus here, in Matthew 18:23, Matthew 18:24, and in Matthew 25:19. in a similar context.