Dict: strongs - grumble
Strongs:
H7279 @ רגן râgan raw-gan' A primitive root; to {grumble} that {is} rebel: - murmur.
G1111 @ γογγύζω gogguzō gong-good'-zo Of uncertain derivation; to grumble: - murmur.
G1113 @ γογγυστής goggustēs gong-goos-tace' From G1111; a grumbler: - murmurer.