The story
- Proto-Germanic · inherited from*karmaz
- Proto-West Germanic · inherited from*karmi
- Old English · inherited fromċirm
- Middle English · inherited fromchirm“the call of various birds; chirping”
- Proto-West Germanic · inherited from*karmijan“to make a sound”
- Old English · inherited fromċirman“to make a noise, cry out, shout”
- Middle English · inherited fromchirmen“to chirp, twitter”
- English todaychirm
From Middle English chirmen (“to chirp, twitter”), from Old English ċirman (“to make a noise, cry out, shout”), from Proto-West Germanic *karmijan (“to make a sound”). The noun is from Middle English chirm (“the call of various birds; chirping”), from Old English ċirm, ċyrm, ċearm (“noise, cry, alarm”), from Proto-West Germanic *karmi, *karm, from Proto-Germanic *karmaz, *karmiz. Doublet of charm (“sound, voices; group, flock”).
Etymology from Wiktionary, CC BY-SA 4.0.