From Ancient Greek συμ- (sum-), variant of συν- (sun-), from σύν (sún, “with, in company with, together with”).

sym-

1. variant of syn-, used before the letters b, m and p.

• (identical): homo-, iso-, ipsi-, syn-
• (together): co-, con-/com-/col-/cor-, syn-/syl-, inter-

sym-

1. alternative form of syn-, used before labials

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sym-

1. alternative form of syn-, used before labials