Ejaculate, v. t. [imp. & p. p. Ejaculated; p. pr. & vb. n. Ejaculating.]
Etymology: [L. ejaculatus, p. p. of ejaculari to throw out; e out + ejaculari to throw, fr. jaculum javelin, dart, fr. jacere to throw. See Eject.]
1. To throw out suddenly and swiftly, as if a dart; to dart; to eject. [Archaic or Technical] Its active rays ejaculated thence. Blackmore.
2. To throw out, as an exclamation; to utter by a brief and sudden impulse; as, to ejaculate a prayer.
1 other Webster entry under this spelling
Ejaculate, v. i.
To utter ejaculations; to make short and hasty exclamations. [R.] "Ejaculating to himself." Sir W. Scott.
Shades of meaning
Fernald has no entry of its own for ejaculate; he lists it under call.
Where he writes about it:
To ejaculate is to throw out brief, disconnected, but coherent utterances of joy, regret, and especially of appeal, petition, prayer; the use of such devotional utterances has received the special name of "ejaculatory prayer." To cry out is to give forth a louder and more excited utterance than in exclaiming or calling; one often exclaims with sudden joy as well as sorrow; if he cries out, it is oftener in grief or agony. — from call
One may exclaim, cry out, or ejaculate with no thought of others' presence; when he calls, it is to attract another's attention. — from call