Original Word: συναντιλαμβάνομαι
Part of Speech: Verb
Transliteration: sunantilambanomai
Phonetic Spelling: (soon-an-tee-lam-ban'-om-ahee)
Short Definition: I assist, help
Definition: I lend a hand along with, take interest in (a thing) along with (others), assist jointly to perform some task, cooperate with, take my share in, help, aid.

4878 synantilambánomai – properly, to give assistance with full initiative because closely-identified – supplying help that exactly corresponds to the need.

[Note the prefixes: 4862 /sýn ("closely identified with") and 473 /antí ("corresponding") which each nuance the root (2983 /lambánō, "aggressively lay hold of"). 4878 (synantilambánomai) is always in the Greek middle voice in the NT to further underline the high personal (self) interest motivating giving the help (which is personally shared).]

Word Origin
from sun and antilambanó
Definition
to take hold with at the side, hence to take a share in, generally to help
NASB Translation
help (1), helps (1).