Where does “ลูกสิงโต” come from?

ลูกสิงโต (Thai) comes from Thai สิงโต, from Thai สิงห์, from Sanskrit सिंह, from Proto-Indo-Aryan sinźʰás, from Proto-Indo-Iranian sinȷ́ʰás, from Proto-Indo-European *sinǵʰós-.

ลูกสิงโต (Thai): cub, lion cub (young lion)

Definitions

cub, lion cub (young lion)

Ancestry of “ลูกสิงโต”, step by step

ลูกสิงโต traces back through two separate lines of ancestry.

via Thai สิงโต

Step	Language	Word	Meaning
1	Thai	สิงโต	"siṃha", lion-like mythological animal; lion
2	Thai	สิงห์	"siṃha", lion-like mythological animal; lion
3	Sanskrit	सिंह	the lion; the zodiacal sign Leo or its lagna;...
4	Proto-Indo-Aryan	sinźʰás	—
5	Proto-Indo-Iranian	sinȷ́ʰás	lion
6	Proto-Indo-European	*sinǵʰós-	—

via Thai ลูก

Step	Language	Word	Meaning
1	Thai	ลูก	ball; round object; fruit; subordinate; person of...
2	Proto-Tai	lɯ:kᴰ	child

Every word from Proto-Indo-European *sinǵʰós- →Every word from Proto-Indo-Iranian sinȷ́ʰás →Every word from Proto-Indo-Aryan sinźʰás →