desde

1. since
2. from (a location)
3. starting at (a quantity, such as a price)

infancia

1. childhood (period of human development from birth until puberty)
2. infancy

demostró

third-person singular preterite indicative of demostrar

su

1. Apocopic form of suyo his, her, its, one's, their, your (formal)
2. Apocopic form of suyo his, her, its, one's, their, your (formal)
3. Apocopic form of suyo (“your”)

amor

1. love
2. love affair

el

masculine singular definite article; the

mar

1. sea
2. seaside
3. lunar mare
4. loads
5. really; hella

por

1. by (indicates the creator of a work)
2. for (indicates something given in an exchange)
3. through, out, via (indicating movement)
4. across (indicating movement)
5. about
6. due to, because of, for, for the sake of, out of (to express cause or motive)
7. over
8. times, by, multiplied by
9. according to, for, regarding (to express opinion or something concerning someone)
10. via, through, by (indicating the means of something)
11. for (indicating duration)
12. for, for the sake of, on behalf of (indicating doing something for someone's benefit)
13. per, for each
14. to (indicating something that has not yet passed)
15. about to (indicating something that will soon happen)
16. compared to; against; versus (indicating a comparison)