Entry record from Sneddon (1984a): Proto-Sangiric
Page number: 64
*əŋgo(ŋ)
• [to make a noise to warn others of one's presence; to call out (to someone)].
Note: Sangir əŋgo to make a noise to warn others of one's presence; Ratahan uŋgón to call out (to someone) [cf. PPh *əNgəŋ moan, hum].
Note: see footnote 79