nudge (n.1)

"complainer, nagger," 1960s, from Yiddish, from Slavic words meaning "fret, ache," realted to the root of nudnik (q.v.).

nudge (n.2)

"a slight push," 1836, from nudge (v.).

nudge (v.)

"to push slightly with the elbow," 1670s, perhaps from Scandinavian (compare Norwegian nugge, nyggje "to jostle, rub;" Icelandic nugga "to rub, massage"). Related: Nudged; nudging.