manum commodo

Etymology
From, the accusative singular of +. Literally "I lend a hand".

Verb

 * 1)  to lend a hand, to help
 * 2) * Seneca, L Annaei Senecae Oedipus, line 1032
 * Iocasta: [...] Agedum, commoda matri manum
 * Jocasta: [...] Go on, lend mother a hand